Yes, easy to use. However, it has it's particularities, that are important to follow.
To start, the clay alternatives when brand new comes with a thin protective film, so they have to be used at first on glass, to break in. It's not rocket science, just guarantee that while first using them, do all glass around vehicle and then you're done to start claying paint.
Do not exert too much pressure, or you'll mar the paint a lot. Clay alternatives will not scratch paint, but something between clay and paint WILL scratch if you rub it hard over paint.
Rinse it on bucket frequently, preferable with a grit guard to keep any particulate bellow the guard.
To get rid of clay marring, you'll need at least one step polishing / light polishing before LSP. Using fine clays (normal clay) leaves less marring than those nanoskins. Nanoskin mar something like 'aggressive grade clay', but fine grade nanoskin leaves less mar then medium grade.
Work up/down, then side to side. That way I've found effective and fast to remove above surface contaminants.
I've also found that 'normal clay' works better if I'm dealing with paint overspray, while nanoskin works the same (but very much faster) on general contaminants (when paint feels harsh even after wash).
In no time you'll get reflectivity and slickness back on paint using nanoskin. Get the most from the results doing a good polishing afterwards, use a good LSP and you'll have your show car finish guaranteed.
I've used many things as clay lube for nanoskins, since water, QD and car soap. My favorite is CG Wash and Wax thanks to it's lubricity and cleaning power, while leaving the surface very slick.
Try to find what works best in your case.
It's important to 'GLIDE' the clay over lubed surface, not 'scrub' it.
I have and use nanoskin and car pro, but I believe any brand sold on AG will get you there.
I use clay mitts the most, but I do own a clay sponge and a clay pad 6" medium grade.
On these threads I'm showing the usage of nanoskin mitts and some pictures of before/after just claying. I also discuss the use of car soap as lube in some topic reply.
I believe claying is one of those factors that alone has huge impact in relation to other steps.
http://www.autogeekonline.net/forum...bel-coating-treatment-signature-flex3401.html
and also here
http://www.autogeekonline.net/forum/show-n-shine/75602-2013-chevrolet-cruze-meets-uber-compound.html
Hope I've helped,
Kind Regards.