ok guys I need your opinions.

here is the deal. my instructor has me and this other kid finishing up our PPL's on the same day (next saturday). so he told me today that if I let this other kid fly safety pilot with me for about 100 hours (time building for commercial) in my plane (and for those of you who dont know or dont remember I pay $15/hour plus fuel, which is around $3.75 here. so, wet, my plane runs about $45/hour), then he'll give me my instrument and commercial training for free.

so i guess my question is, is this a good deal? or should I just find someone else to split the plane/fuel costs straight down the middle and pay for the instruction separately?