I have both n97 and n900. I have them both coz i need two phones. like what you are saying, i don't see a lot of bugs on n900, anyway, pr 1.2 is coming soon.. and i know it will fixed all the major bugs of the phone.. n900 is great, but n97 is a nice phone too. one thing, n97 have the newest version of ovi maps.. and its free. n97 more apps n900 few apps. for screen responsiveness, n900 is better. Battery life, n97 last longer. so, whether you buy n97 or n900, you'll surely like it.

EDIT: n97 has really lot of bugs, but with the latest firmware, everything works fine... camera quality, i dont see any difference.