I have the green one and the RCBS collet system. For anything more than one or two I use them in tandem. Sometimes the collet can't get enough purchase on the bullet and it slips repeatedly.
I hate having the powder dumped all over the bullet, and separating them, especially if it has a sticky lube on it. I start the bullet with a couple taps in the kinetic then move it to the collet puller where I finish bullet removal and dump the powder in a container. Neater, cleaner and more powder recovered. Once I get the rhythm going, it is as fast as using the kinetic by itself.
I used to bang the puller on the concrete floor but the ol knees don't like the exercise now so I use the big O of a handy unused press (no die inserted) to rap on and so far haven't broken a puller. (now that I have said that, it will probably happen tomorrow).
If I were buying one today I would look at the one with the over sized rubbery handle (I think its a Lyman brand) and make sure it had all the features of the other good ones, like quick open to change bullets and sturdy construction and ability to use shell holder etc.