Meh! another fair weather Zedder
Quite a few people travel a long way to go to Abbey, but RS are very well regarded too I am sure some closer to you can give you some good recommendations
As said above it is a good idea to decide on what you are going to get done before you get the upRev, plenum spacer is pretty much a must do other than that just a good intake filter and maybe an exhaust/ypipe/cats if you really want to splash the cash
It is hard to describe the smoothness and pull you get from the upRev, it really has to be experienced. The throttle is opened up to 100% which gives you more precise, smoother and instant control and the torque is stronger and available lower down so it just pulls and pulls... and then pulls a little bit more