I watched a video on some chinese laminator where they just pulled the print through. It took two people though to do anything large, as one person had to handle to laminate and backing paper. Those cheap laminators dont always have the upper roll handler or a take up reel for the backing paper.
Yep! I worked with one of these for a few years, worked great. Reason I asked how long the longerst piece you'll be working with is exactly because of the lack of take up roller.
The easiest way to do things, is to have a bench on one side, preferably as long as the longest print you'll be working with - say 8' (2400mm)?
The biggest drawback is, that you need to pre cut to size the piece of laminate you need, and are almost always better off making the laminate a bit narrower than the print so that you don't have to worry about a sacrificial liner.
In closing, keep in mind that these machines were primarily made for mounting prints to substrate - so you get a 2 in one tool here - these machines are great for mounting IMO. If my shop was big enough I'd keep one just for that as I find it easier to mount with than my royal sov.