I have had a regular Pool Buster for three years. It does work awesome!
The draw back is that you have to remember to recharge it...lol
Also it may run outta juice before you've quite finished the job, if you didn't recharge for this session... ( I'm wary about recharging until the battery is dead because some batteries have "memory" & recharging early can mess them up... although I don't specifically know this as true for the P.B.)

I wish that the finer-mesh filter bag had been more reasonably priced... since it seemed over priced to me I didn't purchase it... found that I needed the better filter bag this season, so I put a filter sock inside the original bag, & that worked out pretty well.

Mostly I just use my P.B. for touch-ups now, but it was my primary vacuum for the two years with my "donut" pool.

I do highly recommend the product, but I don't think it's very pratical for really large pools as the solitary vacuum...jmo