I had one in my hand last week (a friend bought one) the unit is small, really small, and the front mounting is great if you have a place for this and a bit of a odd issue if not. The soft start is a great function (common to all herpstats on the new series) it slowly brings power up after a interruption in electricity rather than hitting max power straight away. This is a valuable feature in any thin wall enclosure (tub) or incubator. It is a dimming proportional unit rather than a pulse it feathers power rather than cycle on off rapidly. Some claim this to be more accurate but in my experience (HS4 and pros) both have such a high degree of accuracy that if there is a difference I can't isolate it. It has a night drop feature that is a grand thing. Royals don't need a night time decrease in temps but if you set the clock 12 hours incorrect 8 pm over 8 am 'night drop' become a day drop. This can be used in rooms that commonly experience a decrease in temps over night and be used to compensate. The ramping feature can be used to make a clean easy transition between the night temp and day temp. The only down side would be the max wattage of 350 but in a single or small rack it is not likely you will hit the max anyway. It is similar to the Ve200D with the night drop module added. (140$) It has the additional soft heat and ramping on top. The power cord is loads long and the probe accurate and very long cord (almost too long, never thought I'd say that any electronic thing would have a cord too long....) It is one serious unit for a bargain basement price.