Thanks!

Well to try and answer your questions:

• It does work
• Its not really unreadable so its fine
• I think it dries the same, I'd have to ask my other half
• The lint trap still works well because its vented so the air still passes through it

We've been using it the right way up for years so lint had collected in the botton of the actual unit and when I mounted it upside down that all fell through the unit body. It did cause it to smell like burning fabric for the first 30 mins running it upside down down but I just stood next to it with a fire extinguisher until it "burnt off" the smell you could say.

Now been running perfectly with no burning smell for 10ish loads of laundry!