OK. I take it back. We're not talking 5 minutes of time. They'd have to read your existing tune and save it. Then take a copy of that and merge our tune into it. So we could get you a 2015 tune where everything is safe to copy. If you like sport mode, you might want to merge our driver demand settings (that get you sport mode all the time). Otherwise you can keep your existing settings for that. Since the license is stored in the HPTuners USB adapter, you'd have to use that same person again for any changes. Otherwise you'd have to purchase another license.
So when I said 5 minutes, we're probably talking closer to 10, maybe 15 minutes to read your tune, copy our tune to a copy of yours, then save it. Finally flash the optimized tune, then go for a spin to see if everything's OK. You'd need to keep both tunes (stock & modified) in a safe place (usb stick or cdrom) should you want to restore stock or change something (like driver demand or something new).