Doesn't reserve your selected time, causing you to start over at the end if time chosen gets taken before you finish scheduleing. If you need to make multiple appointments for chronic illness, it won't let you schedule multiple appointments at the same time, this means you have to fill out the same monotonous form over and over and over again for each appointment. This is not ADHD friendly, and is 1 more wall of many walls they have to climb over to get treatment. Speaking for a friend, lol.