I have used nailite gels myself. I was very satisfied with them UNTIL I outgrew them, if that makes sense? I couldn't do everything with them that I wanted to. While VERY satisfied with their performance.... some things I couldn't get on with (the euro gel is not my fave) and I need a french builder as well as a natural white builder, which I dont think they have yet.
Having said that, I still use their gentle gel for permanent french toes as it's easy to remove, and keep x-hard on hand for other things.
I like the clear french to use as a gloss, but their 'seal-it' is pretty awesome too (I use it daily), particularly if you want to do a funky french with polish, and seal it to protect it.
I like their variety of colour polishes too.
BUT my new product of choice that I'm loving is EZ Flow "gel-it" which my clients adore.
And those that didn't get on with the nailite, because they are hard on their hands, get on great with EZ Flow. I see less breakage's with it.
I'm in love with Ez Flow.
Choosing a gel really depends on your needs and what you want out of it.
I use a great deal of nailite products and am satisified to date with their perfomance and client services.