I have been using MakeSkyBlue controllers for the past 3 years. When I started with solor power I used the V118 which worked well with acid batteries. Now i have replaced the controllers with the V120 and lithium battery. My experience has been very positive with these controllers. For a verified review of the V120 i need to use them for some time.
I bought the V120 but haven't tested it yet. I'm looking forward to it giving me the same surprise as the V118