At the end of the day they are all mass produced units, so there will always be failures, walbro 's quality went down a bit a while back according to a couple of people I know, a member here had a pair of them fail within six months and now won't touch them, if you scour the Internet there's also been a bad batch of swrd pumps in the last year or so leading to some twitchy bum moments from others, but again ash has one in his classic running nigh on 350 with meth with no reported problems
My rcm pump has been in since Dec with no ill effects so I'm happy with it plus the customer service is good mine arrived in under 24 hours of ordering,
There's also scooby worx