I got one from Amazon last year and returned it. The fans did not inflate it all the way, and the lights were very dim. Probably would have kept it if it worked, but try and see it first or buy from somewhere with a return policy.
Just saw a you tube of this, and it had the same issue with not inflating all the way, but it was still better than the one I had. Looks like it is a common issue.
I bought mine in 2019 from Spirit, but couldn't use it until last year. I didn't have any issues with it, but I do agree that the fan is far too small for the size of the inflatable. I usually only set up huge inflatables like it a day or two before Halloween and they usually only end up running for a few hours per year. It would probably be fine with very light use (and a little help during initial inflation), but I couldn't see it lasting a whole season.