Tippmann is just like a GBBR to HPA. both would have recoil but GBBR you've got the ball ache of tapping mags and also buying the mags which is expensive in itself. Tippmann if you wanting a recoil HPA setup. i have a Tippmann and SMP both are excellent
Tippmann is an ok price but there's a few things you need to change. HPA a gbbr its a costly do with the price of mags by then and with tapping valves you'd more than a tippmann. P* is very pricey I think for what you get.
If you dont like heavy guns you'll love the tippman, weighs about the same as a combat machine iirc. It put me off but I'm sure that it'll be a plus to many because of it