I actually use the exact setup you are asking about. The shoes are absolutely great. The first time I tried them on, I instantly knew they were going to work for me. They are very comfortable, as well as light and stiff. The R151's are the first real road shoe I've ever owned and I love them. The ventilation is outstanding as well.

The pedals get no complaints either. I hadn't ridden clipless in over five years when I got my SL's, and to me these were a very good choice. The platform is big, for power transfer, and the engagement/disengagement is very positive and easy.

My one complaint is that they are only one sided, and they are rear-heavy, which is something I'm getting used to...but nevertheless, I could do without it.

I got my shoes for $140, and the pedals for $60 (with my bike purchase), so while the shoes are a bit pricey, I couldnt pass up such a screaming deal for the pedals. I think they would have been worth every penny had I paid full price for both.