Most of the things that I think may be a waste of money, I have not actually purchased because I can't afford them.
I do have some Arsuxeo shirts. The pockets are a bit small or loose but the fit was okay perhaps because I am not as fit as WiFi.
Orange Arsuxeo Cycling Wear by
Timothy Takemoto, on Flickr
Wosawe (another Chinese brand) are better and about the same price at 30USD for a jersey shorts summer set.
Wosawe Cycling Wear by
Timothy Takemoto, on Flickr
I have wondered about expensive brake pads. Some of the yellow ones named after a mountainous country came with a bike lately and they were goo, but about 40 USD a pair. Now that I have swapped them for my usual KingStop reds from aliexpress, which are 5 usd for two pairs,
Kingstop Brake Pads 2 pairs for 5USD
I am not able to tell the difference. Cheap Shimano ones were nasty though. And perhaps the yellow ones are kinder to rims or create less heat when going down Alps in summer. I won't be buying 40usd brake pads.