I'll second E-tunez. They were quick and easy to deal with. Had my tune dialed in about a week. Thanksgiving was thrown in there as well, so I was even more surprised.
It also depends where you are located. I don't care for doing e-tuning where I have to speed down the open road and datalog. I have always gone to https://www.blacktrax.net/ in Fremont, CA for my tuning needs.
If you are looking for an E-tuner where they send you a tune, you datalog, they critique it, and rinse and repeat, there are a couple on this forum. Just use that search button.
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