I agree but not entirely. API QUICK STRIPS works great if you not ARE NOT a beginner and need quick numbers. I use only API products and couldn’t be happier. I learned from my friend who has beautiful tanks the last 14 years I’ve known her. She only uses API and actually gets mad if I mention the more expensive tests that do the same thing. So far so good for me as wells d I don’t think I will EVER switch. Not ever. One thing I’ve learned about this hobby though is that to each his or her own and no two tanks are ever alike.The slightly more expensive ones are more accurate, and where small margins of error are so significant, ppl pay the extra. Also the more expensive test kits give you a much more exact number, vs the large deviations for api. You tend to get what you pay for in this hobby