I have the 9500xi and I really like it. Being in NYC and surrounding areas, locking out the false alerts is key otherwise it would be going off every 5 mins. Also, the redlight camera alerts are useful since those are all over the place in the city. A buddy of mine has the V1 and I will say that the arrows are a really nice feature. If I lived in a more rural area, I might have gone in that direction.
ESS 550 Supercharger, Megan exhaust, test pipes, etc