I've had mine for about 6 months now and not had a single issue with it. The hinge for the keyboard is more durable than it looks. I generally treat stuff carefully though, but there is a video on youtube of some guy shaking the whole phone around on it's hinge like crazy and it was still intact.
It's pretty thick due to the keyboard and quite heavy, but at the same time it feels very solid and makes most phones feel plastic. It's not exactly fast, but copes well with gingerbread and I don't notice any unreasonable amounts of lag or delay when using the phone. Also the screen is brilliant, very vibrant (but accurate) colours and excellent viewing angles for a normal LCD.
I'm not sure how it stands compared to the latest offering right now, but it's by no means a bad phone.