Spectra is very uneven. It depends on who is managing the particular branch you use at any particular time.
For B&W 68 degrees is good and so is MV labs. Also for B&W Kenneth Taranto is very good.
For many years I've used Modernage for color work. I'm finding them a bit uneven lately for LF E-6 film--I just don't think they do the volume they once did, but they're fine for 35mm and MF, and their customer service is excellent.
Lately I've been using Duggal, which used to be notorious for bad customer service if you weren't a big customer, but recently I've found them okay, and they do enough volume of E-6 sheet film to maintain a very high standard of work.