I have the I150 and I think it really depends on what type of person you are. I would imagine the Buchardt room correction will get you 80% or so of what Dirac or meticulous manual EQ would. But the I150 only takes 60 seconds and is extremely easy to use. I’ll also mention the I150 has not had any of the issues Buchardt’s active speakers have had, runs cool, and the app, while somewhat sparse, works well.
I did not do before and after measurements but it’s fairly instant to turn EQ on and off through the app…and there is a pretty noticeable difference on vs. off. I’ll also mention the before measurements in the Buchardt app were very close to in room measurements I had taken with REW a year or so ago. For a reasonable comparison, there are reviews of the A500 that show response before/after room correction…most notably here:
https://thenextweb.com/news/buchard...s-feels-like-the-future-of-hi-fi-speakers/amp
Finally, the app also makes sub integration easier than it would be otherwise. I think Buchardt has a pretty good return policy, so I don’t think you’re losing a lot if you try and then don’t like it and want to send it back.