A clear pass to me. Not worth the risk and hazzle.
I wish Tavelo all the best with that pricing policy.
Myself just pulled the trigger for a almost new Scultura 9000 with Alu rims yet full R8100 for less than 2400€. A way better package and value if you ask me.
Now I'm looking forward for some new wheels from the Shanghai bike show and that the Yen comes up in value again and then I'll upgrade. Current favourite by quite some margin is 9Velo with carbon spokes.

I simply put bubble wrap around battery. I rode 100 km with no issues. I am still looking for a permanent solution.

I can now confirm that the SL7 Di2 battery mount works for the 268 
Can't put the link in, so have added a screenshot:

Reportedly the front end is incredibly flexible

Very fair point about the current pricing of both Winspace and Tavelo. But if they are both in fact sourced by Adapt, it's a shame we don't see more bike builds and conversations on their frames on this forum. Especially if we are to assume the quality/fit finish is nearly the same if true.

The question becomes:
1. Does Adapt not (easily) offer up B2C sales?
2. Are people generally just not interested in their frames?

If it's the latter then it's odd to use the Winspace open-mold talking point if people just aren't interested in Adapt's offerings to begin with.

I have contacted people i know in the industry and the answer is:
Adapt does not offer (easily) B2C sales at all. You need some pretty deep connections to get them to entertain such an idea.

I installed the old design on 5 bikes, and i cracked one non drive side arm at 6 or 7nm. Racework is largely useless to deal with. They made so many mistakes in my order with them that i can't remember the exact count. Beyond the cranks, i bought 12s chains from them, they sent me 11s, the bar tape they sold me is the absolute worst i've ever used, and more. They refused to warranty anything, including the crank arm even though it was low torque (they dont tell you what torque to use, btw), but i managed to buy a replacement one for cheap enough - abnormal, but at least i still have 5 cranksets to use and not 4, for now anyway -.
We've put around 5k km on all these cranksets so far, i'd say. to avoid cracking more crank arms, i'm using 5nm and an obscene amount of threadlock. It's been working.
Either way they updated the non drive side design.
I wouldn't recommend them, goes without saying, but to be fair, i'm happy with the cranksets as long as it's not broken - kind of like i'm happy with my ltwoo er9 when it's not broken, the problem being that out of 5, 2 broke for no reason -, and their 3d printed saddles are nice too.