I used GoodLabs for the first time today. Their site is aggravating, and it doesn't save your cart, so if you ever refresh your page *poof*. Happened to me on multiple browsers, too (I thought it might be my security settings, adblocker, etc.).
Anyway, prices are even better than Jason Health for most things. I don't know if it was a fluke, but they also seemed to have access to appointment times that aren't publicly listed on Quest's scheduling site. I was able to nab a 7:40AM this morning while scheduling last night. This is unheard of for this location. To get an early appointment usually takes a few weeks out. And after making the appointment through GoodLabs, it never even showed up on Quest's site but did show up when I checked in on the kiosk. I was worried it was just showing on GoodLabs' side and not be real, but it was legitimate. I looked again this morning, and another 7:40AM was showing for tomorrow morning, too. That time is this location's first available for the day.
So between the pricing and "inside connection" on scheduling, I'll be switching over. Even if that scheduling thing is a fluke, I'll be switching anyway. There are a few things where other labs are cheaper.. but not many.