I have been using FluentAI and it is getting better day by day. I am quite frustrated with the lack of support from LR and almost absolutely no further development.
I agree with some of the comments here. It is not as developed as LR. But I have been using it and the platform is getting quite good. I by the end of this year, FluentAI can be one of the strongest competitions. Developers are extremely responsive and prioritize feature requests and bug fixes froms users.
Yes, FluentAI is quite expensive but they have really good lifetime plans. There is also a free version available.
I will provide a detailed review of Fluent AI in July.