My biggest satisfaction with 5E lies in two things: first, all character options feel more viable than ever due to the pruning of feat chains and lots of trap choices. I could literally choose everything about an opening build randomly and still have a completely playable character that doesn't suck. It feels like they finally rectified several age-old problems with the new system and it's a feeling I can appreciate. (I can actually play a ROGUE without feeling like the useless butt of the party! GLEE!)
Second is that if a DM is cleaving anywhere close to the rules, the challenge never goes away. Because minmaxing has its limits and is harder to do on average, it takes far, FAR longer for challenges to become trivial, thus allowing the DM to use simpler enemies and challenges more without being forced to step it up to demigods and armies just to challenge a mid-level party.
For those wailing about the lack of options: shame on you, you nearsighted little goblins; you're not wrong, but you KNOW they'll release splatbooks and adventure modules with plenty more races, classes, feats, treasure and spells soon enough, right?
Enjoy what you enjoy; more will come for all sides either way.