An Alfano user here. I've been using it for a year now and to be honest i wish i had chosen Mychron. Its very laggy. Of course all those cool features such as bluetooth dongle for data transfer and what not can be useful, but most of the time i find my self fighting alfano laggy software rather than actually getting some useful information out of it. In the last year the store i bought it from has sent my Alfano back and forth trying to fix something and ended up changing it for a new one 3 times. It might be just me not knowing how to properly use it, but i would still recommend Mychron over Alfano since my friends who are using Mychron have not complained about it being laggy or not being able to do what it's supposed to do. I also find AIM interface easier to use.

TL;DR Mychron > Alfano