I have Dry Fusion, and it's the most profitable tool in my arsenal.
I also have a Victor Sprite 400 230rpm.
If I was to have just one rotary machine, the Victor would be my first choice. At 400mm/15" it's not too big or cumbersome or heavy. 230rpm tends to work a little quicker than 175. If you were to go to the larger 450mm/17" machine, though still 230rpm, the outer edges of the pad/brush would be too fast and risk scorching polyprop if you weren't careful. The Victor Sprite is built like the proverbial Brick One. I bought mine new in 1984ish, and apart from a lick of paint and a new scrubbing brush, nothing else has changed. Never "serviced" or repaired. A good solid workhorse.
A rotary is versatile. I use mine to agitate on commercial grade axminsters with a polyprop scrubbing brush. I've agitated too with skimming pads and bonnets on all types of carpet. On larger low profile carpets, you can work in protector with the skimming pad. So much quicker than with a pile brush. I've used Charly's successfully with Victor (actually, her name is Sandra because she's a great little scrubber. Don't ask
)Obviously you can bonnet too. I recently worked on 1200sqM of generic bonneting with DFC 105 and the results were superb. I've used a 3M white floor polishing pad with my Victor to help a colleague do some Encap cleaning. We had several machines available on site. A 175 rpm was krap, the victor 230rpm was pretty damn good, but the best machine for this job was a 17" 300rpm.
If you wanted one of the branded rotary systems, although I feel that the Dry Fusion is the best LM system out there, I would go for the Texatherm. This is because the actual machine offers more versatility than the "Little Red Fire Engine". It's more of a conventional rotary and, I think, about 175rpm. Gary Webber works closely with Texatherm, so perhaps he could confirm the rpm.
Safe and happy cleaning
Ken
