Some folks love CT thread, and others hate it. I'm one of the folks that hate it. I won't use it if it was given to me. If you do a search, you'll find lots and lots of posts - both good and bad, about all brands of thread.
So my best suggestion to you is to buy ONE spool. See how you like it. Buy a color that you can use for both piecing and quilting (or at least for piecing but make sure you at least try to quilt with it even on a practice sandwich). Then if you like it, buy as much as you can. You might even want to spring for the color card if you like it enough, that way for future projects you won't have to "guess" what color matches best from the colors on the screen (which are rarely accurate).
I made the mistake of buying a whole bunch of it and hated the stuff. I was fortunate to be able to trade what I had with someone here on QB.
Sue