I'm happy with my 7in Xenarc 700TSV. I wish I had waited for the DSCustoms though as it would've saved me some cash.
The best way to mount it is in-dash imo. If you make it look stock enough, thieves may not even notice it. Plus it will save you the trouble of removing it every day. If thats not possible, get a new car : )
Glare will definitely be a problem, especially if you mount it on top of the console. The touchscreen used on those screens are super reflective. Try searching the forums for details on glare and anti-glare films.
Good luck on your install.