I replaced a much, much cheaper case with this just because I wanted something quieter. The difference in quality is amazing.
First of all, the panels are in another league. Just the removable side panel weighs more than the whole of the cheaper case. Its much, much sturdier and feels like its much better quality.
The panel is easy to remove, and the inside layout is pretty good too. The HDD cages are much easier to deal with than trying to wedge yourself in to get it in/out. Theres a good amount of space to try and tuck any loose cables in, and the case comes with some ties to keep them there.
My only problem with the case is the giant fan on top is a bit loud. I don't have much high performance gear in my computer so don't really need all that cooling, but reading around there are ways to slow it down that I need to look into. Apart from that, it is a very good quiet case.
One word of warning though, the word 'mini' here is a bit subjective. This case is fairly huge for what is meant to be a MATX case. Make sure you double check the dimensions, because this beast might just catch you out. It just about fits in the space I have (which is why I'm limited to MATX) but its not a comfortable fit.
Overall this is a decent case, not sure if its worth the high price but much, much better than those 20 quid cases you see about.