We have used First Tunnels, and again good advice. But ours is a lot bigger (commercial size) and cost quite abit more. We are quite exposed, and the tunnel withstood the snow this winter (just - I was out after every snowfall and brushing it off). Be aware that snow is VERY heavy!
We have base plates, and the plastic is buried, we also have strengtheing bars across the top end of the hoops. So far wind has not been a problem, although in the first year I wouldn't be able to sleep at night when it was stormy and on more than one occasion sent my OH out in his bathrobe in the middle of the night to check that the tunnel hasn't blown away...
Our biggest problem so far has been rodents... mice and in particular voles. They dig very deep and have found their way in by chewing through the plastic in a few places. So now we have started to wiremesh (finer than chicken wire) around the bottom end, but are at our wits end as to how we stop them digging in. The voles eat plants and rarely go into mouse traps (not even baited with peanut butter ones!).
If you look around garden centres (esp small ones) they often have tunnels and are friendly and talkative... We bought ours after a recommendation and chat with our local garden centre!