Re: Vacuuming sucks...
I'm on my 2nd one--the first went by the old name of "Pool Buster" like "Dust Buster". I suspect the "Dust Buster" people took legal action against Water Tech.
After a couple of years, the first one required a replacement battery/motor pack, ran for a couple more years and finally gave up the ghost. The new one, the Poolblaster, has been going strong for several years. I find it's better NOT to constantly recharge it but let it run down after each charge cycle, till it's nearly flat. I, too, use the fine bag. I haven't used a vacuum hose or a suction-side automatic pool cleaner in, I guess, 10 years. I've used the Pool Buster/Blaster and a robotic (first Dolphin then Blue Diamond) solely for all those years.
I believe I was the first person here at PF to purchase the original PB and I think it cost $200 at the time. Everyone, including me, expected it to be a hunk of junk and I was AMAZED at how well it worked, even with the original bag. Just used it yesterday, too.
16'x40' rectangle 19K gal AG vinyl pool; ; Hayward T210 sand filter and 2 Speed Superpump 1hp pump; Solar heated. Test kit: PS 233; PF:6.3; Autopilot SWCG