I tried Nails 4U Dalston as they had availability when my normal salon didn't. It was an extremely quick experience, the staff were friendly and they did a good job with my nails. However, it didn't seem like the cleanest of places, which would make me hesitant to get a pedicure or other treatment done there. Lots of dust, really out of date nail technology, and things looked like they hadn't been cleaned in a while. Perhaps just a place to choose when you're in a pinch.