I stayed on Soi 8 recently at The Hope Land, it was absolutely fine, about 100 meters past the main action so fairly quiet.
It looked more like a long termers kind of place with a small kitchenette set up. No laundry option so you need to walk up the Soi to the wash lady.
For me, you can't beat Citrus Suites, positioned between 6 & 4 so everything Nana related is literally on your doorstep, the cut through ally takes you into
Soi 8 in 5 minutes. Both of these are within the 1500-2k bracket with Citrus being the better quality.