I love Stage 2 and would recommend it if you plan to keep the car for at least 12 months.
I was Stage 1 Revo for about a year and loved the acceleration and performance but it lacked a bit a top end. I went to Revo stage 2 and was getting 380 bhp and 522nm torque on the rollers. I decided to take it to MRC and they managed 414bhp and 577nm torque. I'm now very happy with my car and will stick a Stage 2. I considered stage 3 many times but I am happy with what I have. Mind you, I did say i'd stay at Stage 1 and look what happened!
Current Mods (I wanted to go a different route to others)
Full Revo Carbon Intake
Revo Intercooler
Revo/Scorpion Downpipe w/Sports cat
MRC Stage 2 remap and TCU
Eibach Sportline Springs
Clubsport Discs
414BHP and 577Nm Torque
My car is my daily which I use for work customer meetings so quite often have 400 mile round trips in a day.
I am thinking about a rear ARB next and possibly a dogbone mount but do not want to screw up the refinement.