I used the Smaart with the Studiolive board once or twice last year. Takes 3 to 5 min.
You probably got out of it about what you put in. This thread is about a permanent install, where much more time and care is taken in setting DSP parameters than in a typical short term portable or touring system. I don't think 3 or 4 hours is unreasonable, and maybe even a couple of days in a complex system (this one is not). If all you are going to do is set a mic in 1 position, get a trace of a magnitude response, and then eq till you think it looks right, it won't take long, and it won't accomplish much.
Taking many measurements to try to determine exactly what is causing various problems, and figuring out how to fix them is what takes time and give you good results. It may take more than a few attempts to arrive at a result that you are happy with in all locations in the venue.
Unfortunately for the OP, his speaker system appears to be so wrong that no amount of DSP will help much. He needs to start with designing a speaker installation that will give good coverage without overlap or splashing all over the wall. The three 90º wide speakers splayed next to each other currently installed are probably most of the problem.
Mac