I have a HF and a Ryobi cordless multi tool. But when I was patching our oak floor where I removed a wood stove, neither would help cut the flooring. I wanted to plunge cut a board so I could remove it and both multi tools were so slow I just chiseled the cut. I used a new Bosch blade.
I didn't get a new sander for Christmas and am thinking I might need a good multi tool worse. The ones I have cut drywall great but are not very useful on anything harder. The reviews I see on You Tube and in writing indicate multi tools will cut even hardwood at a decent pace. But my cheap ones do not. They have cut off a piece of casing so I can fit flooring under it several times but they are slow at even that. I am thinking of a Fein FMM 350Q ($155), Fein FMM 350 QSL ($180), Bosch GOP40-30B ($180) or Bosch MX30EL ($120).
A big question is the type of chuck. The most expensive version of each has a "starlock" chuck which is apparently the latest and greatest. Right now, blades are about $10 each for this arrangement. Off brand blades that would fit the older model (I think) are as cheap as $2/blade. The Bosch are probably better but that is a big difference. I figure the starlock blades will probably become more common and I don't use this tool a ton so I won't have a lot in blades either way. But it is possible the starlock chuck won't continue to be the latest and greatest or that it will become the standard and the old style blades will get scarce. But it seems more likely both types of blades will be available and the price gap will decrease.
The reviews suggest the Fein is quieter and has less vibration. It also has a 3.5 amp motor versus a 4 amp for the most expensive Bosch. But I think the fein sweeps the blade a bit more and that may control speed of cut more than the motor amps. I don't consider this to be a significant factor. I'm close to buying one of the Feins.
But what would you do? Fein, Bosch or somebody else? Starlock or older style?