I've only had this Eheim around a year but absolutely zero issues and I for the first several months had it with some very messy fish lol
I had a canister disaster years ago but it was WELL used and I had rushed my last cleaning and to this day still think it was my fault lol I don't worry really about them.... The SunSun ones I've heard are hard to snap correctly and I've heard a few disasters from that but I don't buy cheap filtration so I can't comment from personal experience lol. I know some people love the SunSun stuff too so don't anyone think I'm bashing I just am not patient enough to be that careful.
I switched to canisters after using hob for a few years. The primary reason was ease of maintenance and restarting if we had a power outage (which happens way to regularly here). The switch was about 5 years ago and no regrets. I run two on my 90g and also ran them on my 55 gallon and a 12o down to a 46 bowfront.