Hartke for me. Bought a Kilo amp head when they first came out from Thomann.
Didn't work. Even at full master volume i could talk over it at home.
Tried contacting Hartke and even the owner who was forever advertising that he would answer every email. They didn't respond at all.
Returned to Thomann who were excellent and gave a full refund without issue.
WAL basses. Bought a custom fretless in early 80's. Had a dead spot on G string. WAL didn't want to know. Would never buy another new one. Well that and the fact they now even more stupid money.
Lookers Volvo Glasgow much the same as others have said about car dealerships, told me things were needing done but when i took to my local garage they couldn't find any issues at all. Also poor customer service in dealership. During Covid you had to book your car in for a specific appointment and i decided to wait as it was a minor service. While there the girl at front desk who is meant to be the welcoming face of Lookers Volvo, asked everyone in the sales room if they wanted a tea or coffee except me the one and only customer who had been waiting for 2hrs. No-one even spoke to me while i was waiting except for the floor cleaning guy who said good morning and a bit of a blether. Compare that to a Porsche dealership that i didn't even buy from but offered me tea or coffee and expensive type choc biscuits while i was just in looking around.
Sure there are others.
Dave