We have the "Gardener's" version, unfortunately the commercial size ones were just out of our budget... but we put a row of sleepers in as foundation (we had to dig into the side of a slope to make sure it is totally level) and that has added a bit of height. I have also build raised beds, about 1ft high only, but I think these will increase with time...
Height is not a problem.
The only thing you have to be aware of is to build it with regard to the main wind direction, and if high winds are forecast during reasonably warm weather you can screw the roof vents shut. If you were unlucky and had damage to the polythene, you can replace individual 2m sections of it, or the front and end panel separately, so no total recovering required. Snow also slides off easier due to steeper roof angle.
It does get warm in summer, but with vents open plus window and door at each end it wasn't as stifling as my polytunnel gets. I have three vents, you wouldn't want more. Also got strengthening bars across.
Definitely two person job to put it up though.