I turn a large variety of both soft and hard woods...mostly from green stock that I process, rough-out and dry. Some I get from crotch-slabs and boles that are already pretty dry. I rarely turn any piece that doesn't have very unusual color and grain characteristics. That means that tear-out is almost always a factor, and a good finished product is challenging.
I started turning with EWT because we had a discount buy here on NCWW. I had seen an impressive y'alltube video of a guy in Japan spinning off yard-long green wood strings, and I decided I wanted to do that.
Eventually, I was not satisfied with the amount of tear-out and sanding required to produce finish turnings in pieces with such varying grain structure. I only use the EWT now for occasional roughing or hogging off wood. Finessing and finish turning is done with traditional tools, with much less sanding required. The basic difference is whether you are scraping the wood fibers at a 90 degree angle with the EW Tools, or slicing the wood fibers with properly sharpened and applied traditional tools. As with all tools, the user is the final judge.
Whether you are a beginner or an experienced turner, I'd say keep them because they were a gift, and because there are uses for both EW and traditional tools. You just have to figure out what works for you. If you don't like them, you can always sell them here.