LM 3000

Hi All, I have been enquiringly about remapping my A5 3.0 tdi and keep getting conflicting advice. 2 garages and a few online posts have said the 2013 (facelift) is so electrically reliant, a remap will cause many errors, and others have said the 3.0 V6 is a strong reliable engine capable of handling a small stage 1 remap. Has anyone done this and did you have any issues? Thanks