I am a former customer and I can honestly say that Toplace blows my Farrell systems out of the water- especially when you factor the cost in.
I do an i-lace island (i-lace with a 1 inch perimeter of swiss lace in the front and french lace on the sides.) The realisim of the scalp on the i-lace is second to none. Also, I have dark hair, so with the Farrell, when my hair was growing back, the lace became more obvious on the part. With the i-lace, there's no worry.