I think it is great that there are multiple clients out there, so people have a choice of user experience. One thing that I think is too often overlooked look is if they have implemented the same security and privacy standards as F-Droid, if that's important to you. For example, last I checked, the third party clients where still using index-v1, which is signed using SHA1. Maybe NeoStore updated to index-v2? And there is also quite a bit of effort put into the client-side to make sure it leaks as little as possible to the servers. There are libraries of the official core pieces for third party clients to use to gain many of these protections: https://f-droid.org/2023/05/02/three-client-libraries.html