I choose Zenyum because of I wanted to close my front tooth gap in between and also to straighten my tooth overall. After wearing 11 sets of aligners, the result was satisfied as expected based on the treatment plan outcome. The experience with Zenyum was good with all the follow ups and they do responseded my queries from pre-sale (as because my case is abit complicated due to I have other treatment to adjust the molar tooth) and after sales responsive too. If you have any doubts or questions during the treatment plan, they will be able to explain and solve your queries.
I will recommend Zenyum if you need simple adjustment to your overall tooth! Even if you cannot decide now, just ask for their advise first!