It all looked super promising, but now you are limited to what models you can use. There were some red flags when they first came on AppSumo initially (see Q&A history), but then AppSumo let them come again and they have just exploited a large portion of the community.
And yes, you are limited to cheap and poor models that are practically useless for any reasonable operation. You can select better models from their website options, but you are not getting them; it's a gimmick product now.
Support is either vague and unclear or full of brown one.
The question now, is AppSumo going to do anything about it? Or is it going to be common practice here?