If you are looking for a quick manicure or pedicure in costa mesa. Star Nails is a good option for you. I have been going here for almost 4 years now and really enjoy it.
They recently put in spa chairs for a more relaxed pedicure. The cost is only $12 so definitely worth every penny.
They have a lot of manicurists so usually you can come in without an appointment and still get in. Give them a call, my favorite is Christine but everyone is really nice.