They won't keep the promise. I'm looking at them from the perspective of fully satisfactory (aka 'end-game') speakers that cost 2000 a pair, KEF R3s namely. I think, to buy the referring micro speakers would probably be a waste of money and time with, at best or worst maybe, slowly growing frustration.
Why would you ever look at them from that perspective? I'm not trying to be rude, I'm just genuinely confused. As a consumer, and since we're all on this board, even if something like the Truthear Zero Reds are great, measurement wise, you wouldn't seriously compare them to something like the Unique Melody MEST, other than out of curiosity's and measurement's sake. That isn't to say a lower priced option can't compete with something more expensive, but something like the KEF R3 is some serious equipment, to a normal audiophile anyways. A totally difference class of equipment, imo.
I personally ordered them to replace a chintzy 15-ish year old 2.1 generic dell setup I randomly found in storage just so I could listen to my PC while cleaning. I'm not going to compare them to my Uni-Fi Elac UF5s and Cambridge Audio Azure Topaz SR20, which when I got it cost me about $1400 before tax. I especially wouldn't compare them to something even nicer than that setup.
I only have so much space on my 30" x 59" Lander desk, the aesthetics are interesting enough, and the use of BMR is novel for me, so they seem worth a shot. Sure, down the line I'd love a pair of higher quality bookshelf speakers for my computer (which again, that's the point of them, to replace your monitors or some cheap speaker setup), but since I generally use headphones with my PC, it would be money better spent on nicer headphones. I already have a THX AAA 789, Senny HD6XX, and HifiMan HE-4XX, so other than upgrading my iFi Zen DAC, of which I'm only mildly impressed with, the only thing I'm really concerned with most of the time is getting some higher end open headphones. Maybe something higher end from Audeze. Also I clearly have a lot of Drop products, but I'm sure I could still hate them. I just happened to see the BMR1s when checking up on the year plus wait for a gmk key cap order.
Hopefully I enjoy them, and I'm sure they'll be better than what I'll be replacing, but it does seem like if you're looking to replace current good gear, or don't exactly have a need for them, it would be worth waiting for a second revision, some better quality reviews, or doing more research on something that might better fit within a similar budget. Or hell, just save up, if you have the room, for decent bookshelf speakers. I plan on getting a sub, likely a cheaper one from Monoprice, but part of that is because I could use a decent foot rest
Hopefully they ship earlier than the 21st, given that reviewers seem to have been given units.