As my only strobe experience has been with Bee's kit, I'm very happy...I got the four light set and upgraded to the 1600's and added barn doors.
A five year warranty is nice as well. I also got the vagabond battery (the 300 I think). I've used that outside with all four lights-no problem. It won't work a coffee pot though..(long story).
I bought a used White Lightning from Jeremy Moore and I'm still amazed at the punch that little thing can deliver. I show off to folks with it by writing something on styrofoam with a black pen then flashing it right in front of the reflector. The pen marks are melted into the styrofoam.