You pay for floor and felt separately from the same company. Good shed, got one at more expensive price
If you just want somewhere to dump a lawnmower/bike etc it would be ok till it falls apart, as we know it will...... If you want a work environment (at 6x4 i'd say unlikely) then I would build a shed from scratch using fencing products ie feather edge closeboarding laid down on a fence post frame with P5 22mm floor. Be stronger than anything you could buy prebuilt at the equivalent cost and much more fun to build :) One day i'll do such a thing myself, at the moment i'm semi happy with my 10 years+ shiplap shed that I refurbed last summer after leaving it to years of abuse/no felt etc. That should last at least another 5 years without further fettling ;)
We wanted to build a phone booth in our office and end up buying similar shed but it is not sound proof at all. So end up dumping it and it cost way more to dispose then acquiring it. Still, hot for the price....
Not good quality. False economy been there done that now brought a decent shed. Cold
Don't get felt with it