I love snap-on tools,its everything I have ever owned for the past 25years or so, but when it comes to scantools this days I have to say the maxisys,I will tell you why:
its much cheaper,faster,lighter,capable and unlike snap-on/otc and many others, autel maxisys its based on original factory tools capabilities and functions,and although its not there quite yet if an option/function/feature is missing we can request it and they get added, we can not say that for the rest,and if they (snapon/otc) ever accomplish that it will come at a very high price, not to mention update fees. now snap-on/otc tools have been around for ever,and yes they are expensive but good and reliable with great (support) very hard to find here. with all that said its up to you to choose which one fits you best good luck.