I have elixr 5s I think. 2.5 years / 3000km / 250 hrs use in the sh1ttiest of UK conditions
Bled once in that time, because I had a stuck caliper so serviced the brakes at the same time.
They aren’t perfect – a little squeal, sometimes calipers get a little sticky – but I’ve not had a big problem.
Mind you, I have a set of Hayes Sole on my old marin HT that have never been serviced in the 8 years I have been using them.