I've been using the Optimal Payments mobile wallet at my favorite coffee shop (about 2 min from my apartment) for a few months and it has been awesome! I can order when I am ready leave and my favorite drink will be waiting for me. Because I can pre-pay with Optimal Payments, I don't have to stand in the line to wait either. When the coffee shop started using Optimal Payments, they set aside a special area at the counter for Optimal Payments customers where we can just get our drinks and go. Makes me feel like a celebrity or royalty or something. :) I love this service! Thanks Optimal Payments!!