Our room was off a noisy street, but if you like nightlife then this is a super convenient place to stay. It also has working A/C for the summer months! We got a great price, too.
We ended up with a loft which might not be great for older people or those with disabilities as it has stairs with no safety rail to the right, but a handrail against the wall on the left.
If you use wireless earbuds to sleep in then the street noise isn't a problem. It wasn't for us.
I definitely recommend this place for younger people. Affordable and nice. For older people in good shape, this can be a nice way to afford an extended stay in Budapest as long as you can deal with the street noise.
Oh, and it's near the number 4 and 6 trams. Basically, easy transportation anywhere you want to go in Budapest.
The host gives great recommendations and is responsive, too.