I bought one of these earlier this month (August). I was finally able to try it about a week ago and the results are outstanding. Since I already had a 3 reel Paterson, the ability to develop 4x5 in daylight without using a Yankee or other slosher tank was great. I never really had any luck with tray developing. Morgan O'Donovan's processing insert is a great advance in making 4x5 processing easier for the casual user.