I have owned this mobile for the past 3 years and can honestly say that it has given me no problems. Apart from wanting new features I have no reason to change the hand set.
I bought my set while in the UK where I had joined the BT Cellnet and for a mere 119 pounds sterling, I got the hand set, case, in-car charger, hands free kit and 5 pounds worth of calls a month for a year. The only extra I had to pay (this was optional) was the monthly itemised bill.
The set itself still leaves a lot to be desired compared to the handsets we get these days. GA 628 only has 7 ring tones, does not support WAP technology, does not have any other features like the games or the calculator etc. Being a technology freak I love those extras... but how do I justify (specially to my other half) going for another set while this set is still working!!!!
The hand set is a bit bulky so it does not easily stay in your shirt pocket... if you have it strapped to you trouser belt then the antenna gets in the way (I should know I have broken two of those!).
If you have the money and a choice then I’d say go for something with more features.