They were the only shop who got to solve the mystery creaking sound on my Altis before and it really took us a entire afternoon just to find it. They charged me on the higher side for that job but heck, the sound went away for good (and it wasnt even on my suspension but somewhere near the front part of the chassis).
Don't go for the refilled shocks though. Per my experience, it still softens over time. Rest of the works are okay.