I have had mine around 5/6 weeks now and overall have found it ok.
I have always liked Samsung displays and when the opportunity came to "upgrade" at less cost than I was paying (similar allowance options) I decided to go ahead
Operation is ok but I am still getting used to differences in the newer Android OS compared with the earlier AOS in my previous HTC Desire. Some of the differences are improvements such as the calendar and speed of operation.
The S3Mini isnt as solidly made as the HTC Desire and appears plasticy which of course what it is and I still have the Desire should that plastic crack!!
For what it cost me and the easy O2 upgrade I am more than happy with the swop
