We bought the TomTom XL Classic which is great. The Easyport that came with it really is easy to use, just twist and it's fixed. However we have had to buy another as when you twist to undo it it falls apart! Ours still works but it is a bit of a pain to keep trying to fix ot back together. Don't let it put you off the unit it's been great for us, but it would be an idea to buy an extra port just in case!