It's interesting to see what others are saying about their N95's, as I've apparently had a string of good luck with my handset. No lock ups, no memory issues, slider is built solidly and gives no issues with creaking open or closed.
Now, having had an N73 as my previous handset, I can say my only complaint with the N95 thus far is the battery life, but I have yet to actually kill the battery in a day full of heavy usage (read: watching full length movies, listening to music, reading ebooks, and talking 2+hours on the phone over the span of a day). This is also with bluetooth on, and wifi usage (but not continual scanning).
Other than the small complaint of the battery, I've been continuously impressed with improved performance as far as speed of apps loading and pure functionality of the handset itself.
Granted, the first thing I did once I got the handset was plug it in and upgrade the firmware.