I’ve literally never regretted it, even with relatively modern well sorted bikes like my Bird AM9, it basically feels like it should have had that geo from the factory.
Sometimes there’s a tradeoff for sure- though, not always- but in my experience all it does there is magnify existing drawbacks. Like, my Hemlock and my C456 were not great technical climbers before, and they were slightly worse after. But the difference between “not great” and “slightly worse” is so easy to ignore, because you’re not really losing an asset. If you took a good climber to “not great” that’d be a real bummer but I’ve never had that happen, only the “not great” to “slightly worse”
And the benefits can be huge. I kept my Hemlock til it wore out, rode my Remedy 29 for I think 9 years, there’s literally no chance I’d have done either of those things without the anglesets. And it lets the Bird punch so much harder.