We've used them several times now - mainly because they're so professional in everything that they do! They have great customer service AND are very helpful too when we need some advice or assistance getting something set up correctly once it's all running smoothly (and of course if anything goes wrong!).
The only thing I can say is try contacting someone from imagett at least 1-2 weeks before you actually want your software installed/running etc., just be patient & wait till then since there will always come new updates which might break things. There seems to me like sometimes even after waiting 2+weeks still not enough time for setup issues but luckily this hasn't happened yet :) So far our experiences were good although maybe i could go through more problems than usual during the initial installation process due to being less tech savvy myself but overall no big deal was able to get what needs done without.