That's quite a bit faster than my own group, they managed to get around 1500 xp TOTAL in their first 7 hour or so session, then another 1700 in the next 10 hour session (Playing Friday and Saturday).
Granted, they spent a lot of time just roleplaying, getting to know their characters, creating battle tactics and such, but I felt like it took a bit longer than it was supposed to :3
They did end up getting the remaining needed XP for lvl 2 after the next session though (Also a 10 hour session if I recall correctly), that Sychamore Tree is really a XP treasure chest =P