Having recently discovered that OP existed, I was delighted, and of course threw my money at the computer. I bought every single class deck and all the available scenarios. (I'm a collecter. Its a problem of mine... don't judge. :P )
I generally play this game solo. Most of my friends have long since moved on to other things. Now, I realize that this isn't how this game is meant to be played, but its how I do it. Its nice to not have to get a group of people together to roll some dice after a bad days work. I do have some observations for Solo play.
1) Why can we only register one character online? If I play two handed, and I follow the rules for both hands, what should it matter if I register both characters online? If a reward says "each player" gets something, than I can only get it once, right? So what does it matter if I play two characters? Other people play two characters and play them separately, but they can register them, and still only get the reward once that states "each player" right?
2) For the play through, I choose Tarlin. A character with heal is pretty much a requirement when playing solo. One or two bad rolls can wreck a character with no way to heal. This guy also has several ways to heal. With two Cure spells, 5 blessings and a staff, he can use over half his deck to get cards back. That being said, his lack of power feat choices without his role card is a little disappointing. I don't like having a large hand, but it looks like I may before I can get my role card. Oh well. Next time I'll pay a little more attention to that.
3) I'm sure this has been mentioned before, but the Cleric class deck doesn't really support Tarlin. One of his powers is to discard a two handed weapon or blessing to heal. There are so few two handed weapons, that is could just read "discard a blessing". I get that the class deck needs to cater to all the characters in it. But I found this worrying. Its not just the weapons that I find this an issue with either. I don't think this would just be a problem in solo play, so maybe its not worth discussing in this thread.
4) Balance of 0-1A. I found this to be a very difficult start. Perhaps it was because the character I played. Or perhaps I was just really unlucky. But I had to play this several times to actually complete it. I like a nail-biter ending, but after three unsuccessful attempts, I was finally able to manage it. I wonder what other's experience with this is. The trouble is, with out other players to find some of the Shades, I got them both. And, there was no one to temporarily close any locations, which means I have to dig through them all, with one or frequently two Shades on me. Blessings are not as common in a one player game. This all translated into higher checks, with fewer boosts. Also, this early in the game, I didn't have a lot of deck upgrades to help out.
5) Balance of 0-1B. This one, on the other hand, I loved. Fewer players = fewer Hammerheads to buff the Adaro. Which works well with fewer players having fewer cards to buff the check against him.
6) The rest of the scenarios were fine. I liked the tweaks to the standard game play throughout the whole thing. That was one of my complaints about RotR; that many of the scenarios were basically the same. In particular I enjoyed the mechanics of 0-1F.
7) I would pay for a hardcopy of all the scenarios in a book format (hint hint). I dislike printing this much. Ink is expensive. And it would probably be cheaper for me to but a $20-25 soft cover. Leave the PDF releases as they are, and after all the updates are published, make a hard copy for those that want it. (Who am I kidding? I'd probably buy both anyway...)
1) You can register multiple characters online, however only one of them (which you choose before you start playing) can reap the rewards and deck upgrades for any particular scenario even if you play them both. If you want both characters to get the reward you need to play through the scenario twice. Now we can argue the merits of that restriction (I'm personally not a fan of it) but that's how the rules currently are. I have 3 characters registered for the OP -- two of which are kept up-to-date with my group (the third was to be there in case people died and we wanted to help them get a new character up to speed). One of those two I bring to the group table each week depending on what we think we need more and the other I run solo at home (although a 2 character solo game rather than 1 character; per the rules that 2nd character does not get any rewards or deck upgrades from doing this however).
2) Power Feat structure in the OP scenarios are a bit different than the home game in that you are only required to take 2 power feats on your base card before getting your role instead of the usual 3.
3) I've also raised that issue. Hopefully if they make more class decks in the future or refresh existing ones they address that issue.
7) Considering the PDFs will run you $26 (they seem to be going for $1 per scenario), I rather doubt you'll get a softcover for $20-25. That said, a physical version may make sense as a Print on Demand from drivethru or a similar outfit if there isn't enough interest for a full print run for something like that. It isn't anything I would buy (although I am planning on buying the cards from drivethru when they become available), but I can't imagine you're the only one that would prefer a book to PDFs.