I have a hard time criticizing cheep car wash places--after all, what do you expect from a $3 car wash? I've been here 4 times and it's hit and miss. Sometimes I've gotten the $3 car wash and come out with a sufficiently clean car. Other times I've gotten a $6 wash and had a whole section of my car come out covered in dust.
Overall, if you're like me and aren't willing to shell out $20+ for a proper car wash, go to Clean Freak and get the $3 carwash--just bring a towel to finish cleaning your car and don't expect any $3 miracles.