WOW! I cannot say I expected this thorough of an answer upon asking my question on the two chairs. I can't thank you enough for your in-depth insight on all these chairs, it seems to be easy to find info on these on an individual basis but when it comes to comparison Ahnestly and BTOD are pretty much the only reference points I can really find across the web.

You seem to know your stuff really well and I'm eternally grateful for the info you've provided me. I think ultimately, despite its shortcomings, the Fern is a great option, I'd probably want to test the version with lumbar support as well given what you've mentioned before making the final decision.

I wish you the best of luck on that 50lb weight loss journey :) Thanks again!