I'm glad you got the kit, but I would encourage you to go ahead and get the Taylor K2006.

One reason I recommend the 2 way OTO/phenol red is that it's so basic, it's hard to screw up. Walmart's pool chemicals have gone, over the past few years, from mediocre to TERRIBLE. I don't know that the kit you have is bad . . . but I don't trust it, either.