I like them about as well as Testors which means they are okay. Polly Scale in my opinion is the best acrylic paint and they are owned by Testors. Oh why did Testors not use that formulation for their new line of Marine and Fantasy colors?
The people I've talked to like Lifecolours much better than me at the local hobby shop. Here's a brief description of the paint. They have a very good line of colors that are not available in Polly Scale or Acryl. The paint might be a bit thick in the bottle so you might need to thin it with distilled water. The paint seems to have good storage life. I have thinned them in the bottle and they have not gone bad. They brush very well. I use my stock for dry brushing in detailing cockpit details and for weathering. Tamiya and Gunze acrylics are hard to brush paint. They then to have a rubbery feel, a little softer when dried, have much better adnesion than Acryl. Acryl seems to need a priming coat or else it will peel off when masking. The price is good. Now the bad. I have the most troulbe with Lifecolour clogging my airbrush of all the many different brands of paint that I use. I thin with distilled water, sometimes I think with alchohol but I find distlled water is just as good. Since the paint is viscous in the bottle you need to thin it down, but you can't thin it down too much or else it won't have any coverage power. So you have to just get that thinning amount right. I think Tamiya, Gunze airbrush better than Lifecolour but Lifecolour brush paints better. Tamiya has a poor range of color selection for their bottled paint.
Hope this is enough information. As for myself, I'm trying to use up my stock of Lifecolour and try to reduce the different amount of paints I have. Yeah, I'm trying to get rid of my Acryl and Gunze and Tamiya stock too. Going to stick to Polly Scale except for colors they don't have.