Yea customer service is never a concern until you need a replacement part from a crash or break a spring etc... Then getting spare parts is like pulling teeth.
Dan Kyle stands behind his Sato products 100% and handles any issues with haste plus he stocks spare parts for everything he sells (clip-ons, rearsets, exhausts) & if he doesn't have the spare part in inventory he will bust open a brand new box to get you what you need. I don't know of any other dealer that does that & just try getting a replacement mid-pipe or cannister for your Lazer or Akro & see how long it takes. I can have a replacement Sato cannister with nothing more than a phone call.
In addition he also supplies custom maps for all the exhausts he sells free of charge & he is a master tuner that truly knows the nuances of tuning each individual bike. His Sato maps are so good that if you ask around you will find that many owners of other brands of exhausts are using his Sato maps for Akra, Muzzy, yoshi etc instead of the maps designed for their exhaust...
Trust me I have been installing exhausts & doing carb/Fi work for 2 decades if you have never touched a premium exhaust like Sato, ARATA, Tsukigi, Hamaguchi etc & compared them to your crappy lazer then you are just like the rest of the ignorant folks out there that think their brand is hte best & making up baseless claims. Ask anyone that has owned both & they will tell you flat out there is no comparison in build quality & most of the Sato Slip-ons put out better performance numbers than other brands full systems!