I'll have to agree. When the topic of third party shops come up, there are really only two choices. Cajun and CZ Customs. Since CZ Customs is a little, uh, proud of their prices I generally stick with Cajun. Scott Milam and his crew are fast, extremely well versed in the technical details, and they stand behind their products.
As an example I got their ez drift sight set right when they became available. The design had a major flaw with how the rear sight was supported. I broke two of them and they were replaced free of charge. They re-engineered the part and sent me that one for free as well and it has held up for years. They also pick up the phone and don't mind answering questions before you buy even if it's one little cheap part. So the two criteria I measure them by, standing behind what they sell and making themselves available to answer questions, they pass with flying colors. If and when I decide to get into carry optics with the shadow 2 I already know who will be performing the work.