Theres £50 setup fee and they will set you up a merchant account if you dont have one for £50
There after you pay the usual percentage per transaction to card companies and a small percentage per transaction to adelante, but the £15.00 fee a month includes any fees up to the amount then basically they add on any over and above that.
Ive not ever gone over the £15.00 though.
I just find it so convenient, works on any smart phone, plus you can take payments over the phone ( not all systems allow this ) and you have a internet interface for admin purposes and also taking payments.
So you have the best of all the options
Regards
steve