Indeed it can be. I was at a company that was the big customer asking for special features etc. It was great for us, and I think the provider really appreciate

Indeed it can be. I was at a company that was the big customer asking for special features etc. It was great for us, and I think the provider really appreciated the steady paycheck, the massive patience and customer testing and so on. We definitely had our own way of doing things and we had to sort out if this made sense. (Should we change our way of doing things? Should they incorporate it in the software?). Maybe they felt much worse about it in their private time and complained about us after we left. I never felt it.