After my Costco stopped film I started using The
Darkroom in San Clemente CA. Prepaid mailers,
decent pricing, good scans, good prints, negs
returned with a CD and reference print. About $5
for return of up to 5 rolls. Images posted to online
site if one wants to see or download faster than the
mail. Email messages to confirm receipt,
processing completion, and return mailing.
Tracking numbers, both coming and going. Never a
worry with these folks!