It all depends on what your goals are, if you are just wanting some more power for the streets then the Complete Procharger Kit may be the thing for you. They offer an Optional 5 year / 100K mile powertrain warranty, may want to look into that.
-Even at safe settings your transmission will eventually take a crap on you. I'm sure the tune that comes with the Kit is a safe tune but with any Can Tune it probably will not be anywhere near a Custom Tune.
If you are planning on doing more than just the blower and/or want to track it then you will, at some point, need the following:
-For one I would go with the D-1 Tuner Kit along with FRPP 80# injectors, Diablo Trinity Tuner, Custom Tune(A few choices here, all reputable), colder plugs. Go ahead and get the fuel system as mentioned below or go with the Stage 6 fuel hat if you are on a budget.
-Built Transmission (I have a SHR but BuilderBill has a good reputation)
-Fuel System (I built my own hat but only because I had the means to do so, Skip @ Demon performance has a good complete fuel system for about $2k I believe)
-Not vital to make the car robust, but headers/exhaust will definitely help.
-Don't forget to make room for Tires, those stock tires will not help much with the power you will be making.
-You will probably have the same problem i'm having of spinning just two of your tires(Back right and front left), so a LSD will definitely be a must if you are tracking this vehicle.
I have not had any problems with chewing up belts, or any problems with the actual Procharger Products for that matter. I have ordered a Dayco Belt Tensioner just to be on the safe side along with a couple of belts to keep in the car.
-My jeep has come around night and day from adding the fuel system, transmission, torque converter.
Problems?:
-No belt problems
-No blower Problems
-No installation problems
-Stock dead head style fuel system was not doing well for me, was having low pressure so I upgraded to a return style fuel system.
-My transmission gave up at about 7 thousand miles with the blower. It has been driven hard and tracked many times, under daily driving conditions I'm sure this would not be the case. Just remember the harder to drive the more you are going to pay lol.
-The tuning pre-fuel system was done very easily, Johan is a great tuner with fast response times(Now that there has been a few Jeeps with this kits I'm sure the tuning is almost dead nuts the first time around). He works on a email based tuning system and lays it out very neatly for you. Two other great tuners are Hemi-Tuner and JerseyBoy, both very reputable.
-The install, if done at home, is very easy and takes almost zero skill to do. The procharger instruction manual is very straight forward and easy to follow(Lots of Pictures).