Curious what kind of issues you've had--band failures or cosmetic? I only have one 3rd party band, bought off ebay from China, solely because of the color that I couldn't have bought otherwise. I don't wear it much but for wearing certain clothing items with it so can't really give feedback on it. I do have a few Apple sport bands I've bought since last April and love wearing them which I do most of the time for daily wear. I was tempted to buy another 3rd party after getting my first but in the end decided to just stick with the SB even if it took me longer to get the colors I wanted so understand your comment on going with Apple's.
I had a "JeTech" leather band which is obviously fake leather but it's so thin it broke.. And then I bought a geotech Milanese loop currently and the magnet is weak and it's so damn hard to get the adapter to come out of the watch. So at this point the money I spent on both I could've gotten 2 Apple Watch bands.