Product review (4 stars): pretty good- could use install manual
Works well, heats much quicker than old element top.  Cleanup is easy, too.  Install was a bit challenging, since no install directions or markings on wiring.  If it helps, Yellow=ground, red=line 1 (USA red), blue line 2 (USA black), no neutral (USA white).  But you should check with an electrician and your mileage may vary.