Not used (or heard of) them before but it looks legit to me – in the sense that I think you will actually get what you pay for. They have probably spent a lot of time and effort setting up a very niche business. Obviously not legit in the sense that they are selling copyrighted material without permission.
Years ago I bought the complete Mary Whitehouse Experience on DVD from a bloke who still had all the episodes recorded onto VHS from when they originally aired. Technically a bit naughty but it was the only way to get them! Quality was a bit ropey on some episodes (as you might expect from VHS) so bear that in mind (they aren’t going to be DVD quality).
What film are you after?