We had hard time finding a budget hotel in Macau, truly cheap rooms are at a premium. We came with low expectations and stayed for a night.

Going to the bathroom at night creeps us out because it is located stairs away from our room, and the corridors were poorly lit. Being at the place makes me feel like I'm in the 1920s. The grumpy & leering old receptionist amused us a lot (hey this is Macau!).

"What you pay is what you get" describes this place the most, I wouldn't complain much at MOP$ 100/nite. Will recommend for reminiscing old Macau, but not for a good night sleep.

Look, this place is cheap. In Macau, hostel-like accommodation is rare and so if you're an experienced traveller who doesn't care for luxuries it could be for you. People rarely stay in Macau more than one night and you probably wouldn't spend much time there.
Why do I say this? Because it's rustic, to an extent even run-down, but entirely bearable short-term.
Ask for a room away from the reception because the old caretaker sleeps on a bench there and tends to make a lot of noise.
Rooms are relatively clean considering the place's age. No air-conditioning in any rooms as far as I know, it's fans only. The toilet and showers are small and very basic. You may or may not get hot water, but in summer, what the hell, it's sweltering outside anyway.

The place is well-located, mere minutes walk from Senado square and in the middle of the historic district. A water cooler is located in the lobby where bottles can be filled.
No English spoken at reception but you should be okay with hand signals and the cheat sheet taped to the counter.

Stayed at the San Va in old Macau based on the promise of staying at an old untouched hotel in the heart of the heritage district. Learned the hard way that the "vintage" concept can go too far, and that there's a thin line between stylish retro and miserable discomfort.

Our room was a non-balcony, non-ensuite abode on the middle floor of the building. Didn't mind using the shared facilities however, as they were adequately clean in my opinion. The place obviously bleeds "retro" from the thin staircase entranceway to the of painted wood alter-style reception area. Another thing we noticed: the walls didn't make it all the way up to the ceiling ... a fact that would come back to haunt us throughout the night.

At 11:00pm other guests started arriving back to the hotel and a group of young rambunctious Frenchmen entered the room next to ours. Not to get into too many details, they saw it necessary to loudly converse throughout the night ... a conversation heard crystal clear in any room on the floor. It's not fair to blame the kids making noise throughout the night. They wouldn't have been doing anything unreasonable in any other hotel. This one, however made sleep elusive, and we didn't get but 3 hrs. all night. This wouldn't have been different in any other room throughout the hotel.

I love the idea they promote, but I wouldn't stay there again on my life.