Purchases this cooktop based on: 1) positive cooking experinece with my sister's induction cooktop, and 2) dissatisfaction with our gas cooktop.  I like many of the features in this cooktop, and while this new cooktop doesn't seem to heat-up as quickly as my sister's, I believe it's due to the new cookwear we purchased for induction use: My sister uses All-Clad solid stainless-steel pans; while were useing All-Clad's Hard Anodized nonstick cookwear which has less stainless steel surface for conducting the heat.  The result is slower heat transfer, but our pans are non-stick and clean-up very easily compared to hers.  It's a trade-off I can live with!