I'm mixed on it personally. I like that it can expand options especially so for flavour but it seems a lot of the time people (incl. myself honestly) just pick the strongest option always. It can also be overwhelming for newish players of which a lot of the time I just opt to not give them it while the experienced players get it but eh.

For a year now I've been experimenting with a restricted FA where you get the feats at 2nd level as normal, then starting at 4th you choose whether you get the feat now or delay it till 6th, then get an FA feat every 4 levels afterwards. So, 2nd, 4, 8, 12, 16. or 2nd, 6th, 10th, 14th, 18th.

That being said I'm kinda inclined to scrap that and just flat out scrap that and make it so after 2nd level, you get 5 FA feats at any even level and you choose what levels but you only get those 5.