Use them and be prepare to regret for years .
Why? I used them few years ago, not really that cheap but found the workers are not professional painter.
They used a dried up roller to paint my new plaster wall and ceiling with the crumpled roller, resulting my ceiling has the old wrinkled, paint over several times look which i do not want thats why i paid my partition man $ 4k to plaster the entire house wall and ceiling!
They sent workers to try to sand down my ceiling over 2 days but only manage to do a small section and repainted with no sealant. And as we r rushing to move in , i stop their horrible work. They made no apology nor give discounts. Its the works painter i ever faced!