This was our second stay at a Sonder. I'll start with the good stuff. The place generally has almost everything you need, moreso than a lot of full-time Airbnb rentals. The beds are comfortable, and everything is clean like a top-notch hotel. This is also new construction, which is nice. The lounge has all the extras that a maid service might provide in a hotel.
The space is pretty efficient and tight. It's enough room for a family with kids on vacation, but not a place to hang out for long stretches. The photos for this unit don't exactly match what you'll find, but it's close enough because I assume the units are basically the same, just arranged a little differently from each other.
If I have one real complaint about Sonder (and this complaint includes more than this one stay), it's that they provide the illusion of communication and service. When you have a service request, they will get back to you promptly, with everything tightly scripted and overly friendly. But it's hard to get the actual problem resolved.
In this particular case, every door in the unit was very creaky, and so everyone who was sleeping would wake up if someone tried to open or close a bedroom or bathroom door. I asked for them to solve this (it would take about 60 seconds) or if they could just leave a can of WD-40 for me to solve it. Over five days, wherever I asked for an update, I got lengthy and incredibly friendly promises (from HQ in Boston), but I never got the problem solved.
We had a similar thing happen with Sonder in NYC a few weeks prior, so it's a corporate gap they really need to fix.
But overall, we were happy with our stay. The building and neighborhood are very nice.