I have had my slx 25 for almost 3 years using uni-valve from the start using hot and the green hose. Never had an issue with the fittings. I did service the uni-valve about 6 months ago as it started to stick, which now works again fine.
I had a new addional pole a few months back and the push fitting failed from the start due to missing its teeth in the part. Replaced it, and again working a treat.
Only thing I added on both poles was a second red stem so I was not push fitting hose.