Mai's place is exactly as advertised. My girlfriend and I enjoyed its close proximity to the beach. Literally less than a minute walk. You're right there. Plus Mai's place is close to the part of Waikiki Beach that still has a good amount of sand on the actual beach (there are other areas by the hotels where erosion has hit hard).
Everything in the place was clean and fully functional. The A/C worked very well. It was never a problem getting the room nice and temperate and even chilly when we wanted it to be.
One thing I really like about the place is that even with its close proximity to the beach, Mai's place is on the end of the strip so it was extremely easy getting Lyfts and getting in and out of the Waikiki Beach area, without being inconvenienced by traffic or anything. Plus it felt like a ten-minute walk from lots of things we wanted to do, be it Maui Brewing Company on the main street or Ono's Seafood which is in a more residential area or even Diamondhead. Very walkable for all those things.
Would book again for sure!