First off--our host was fantastic! Her prompt communications and willingness to answer even dumb questions in both English and Vietnamese was really appreciated. I couldn't recommend Kim Properties highly enough for this aspect. The area is great, being in a part of Ho Chi MInh City where there are plenty of moderately and truly upscale dining options, and it is easy walking distance (although a bit warm in the sun) to hit a small area with some more local options that are really good as well (if you haven't had bun nhan, the place near Landmark 81 is very tasty). The apartment itself was spacious and clean, if moderately furnished. Toilet paper and towels were supplied, as was some washing machine powder, dish soap, and some cooking utensils. The electrical plugs were compatible with North American two and three pronged plugs as long as you had a device that could support voltage conversion. The wireless internet occasionally went out, but when it was going it was blazing fast. I think I had as high as 500mb/sec when I did a speedtest on it.
A few notes: 1) the soundproofing in the ceiling wasn't great. 2) the safe never was able to work. 3) our keycard didn't work for us to get to the elevator lobby, which was a pain because they often locked those doors during the day. 4) if you're doing Grab (and do--it's the best way to get around) make sure you select the right building as Landmark is a huge complex.
Highly, highly recommended!