"I am consistently impressed by these copper push-fit fittings. They really lower the bar to entry for a DIYer and are so much easier to use than compression or soldered fittings, especially where space is tight. I got this valve into a ridiculously tight space where replacing the pipe to get more length to work with would have meant tearing out a kitchen wall. Heat was not an option and there was absolutely no chance of getting spanners in there for compression. I have had zero failures to date, not a single drip, from any of these copper push fit fittings I've put in.
My tip - in case of emergency while working on your plumbing, always keep a push-fit end stop in your pocket, preferably a plastic one so it's easy to remove again.
They can be a touch expensive but always far cheaper than a plumber."
"These pushfit fittings are great for anyone attempting small plumbing jobs, ie replacing a bath or repairing pipework. Much more solid than its plastic rival, measure, cut, and fit, its that simple. If your a competent diyer then you can save money buying soldered fittings but these pushfit fittings are so hassle free I think its worth the extra. whatever way it will work out cheaper than a plumber!"
"These are great fittings, although the price has gone up alot and i would not recomend them for plastic pipe. To remove the fittings you need a tool and this is fine on copper but when removing plastic i have found that the pipe insert gets stuck and cannot be removed without damaging the valve"
"I found these horrible to fit to my existing pipework. I don't consider myself weak for a female yet I didn't have the strength to push these fittings home properly, even on beautifully cleaned and prepared pipe. In the end I had to thwack them pretty hard with my adjustable spanner to achieve a leak free fit. Having recently installed a couple of compression fittings and a JG Speedfit I can say that this pushfit is EASILY the least fun I've had with plumbing lately.
That said, once I finally got them on, they do appear to be sound so I won't give them the lowest marks. And obviously they have advantages where space is limited for wielding tools...but it's Speedfit from now on for me!"