well they're still up
they seem pretty solid in themselves but you need to be sure you have decent fittings, they come with a two screws each. the wall they're on is concrete blocks, I used a No 8 masonry drill bit, standard brown rawl plugs and the screws provided. If I get any stability issues from the fittings then I'll upgrade to small expansion bolts.
I looked at a lot of solutions and preferred the idea of each fitting point, only taking one bike weight, rather than a multi bike rack. Also I can then choose my own spacing and heights. All the reviews I found on the Lifeline were positive and they do feel fairly sturdy. Only negative seems to be the plastic sleeving on the hook can come off. But I figured you can always glue on or replace with some surgical tubing.
I wouldn't want to swing on them but think they'll be fine for the bikes. The other option is you can add a support underneath, after you've hung the bike, to distribute the weight. Oh yeah, they were about £43-44 for the 5 of them.