been using Floor One S5 Steam since early this year, so far quite pleased with it.
Built quality = Good & Durable
Price = Value worth it.
Cleaning quality = Excellent(both on masonary, tiles, wood, carpets for normal dirtiness.


Cons(for my model):
Heavier side, wired is realiable but gets annoying when tangled and if your houses have very far power point, not very good at cleaning corner /edges, For really dirty surface(Using on hardened-dusty-blackened musang-shit-stained tiles at my parents house, it is quite ok, can see the the original color back, but after a few passes and need to do every passes slowly.
The sensor can be too OCD, always ask clean the filter and change dirty water but you cam bypass ignore it until the red bar notifies you.

well my thought was,
im looking for both steam + vaccumm, and steaming uses alot of power, and i dont think the provided batteries(including spares) will be enough for one cycle cleaning of my house.
and buying another sets of batteries will require more $$. Hence I opt for the wired ones.