I have used two iOS app creation services and found this product easy to use. It has some so-so features.

However, I do have a complaint.
The iOS build is incredibly slow. Even a simple one takes 2 to 3 hours. Support says 20 minutes to an hour, but that's not true. I think that's about it for android.

I think that not enough testing has been done for some of the features or no one is using them.

As it stands, I don't think we have enough features to release an app to meet Apple's standards.

Support always gets back to me within a day or so. If it gets complicated, another support person seems to handle it.