Okay fine, make me do all of the work.
I like ENTPs for a number of reasons. I do like the sense of imagination. I like the constant useful ideas that are spouted out. ENTPs provide the ideas, I use my practicality to see how they actually apply and force them to stick to the best idea. I get very reassured when I get an idea of how the future could/will play out.
My Te is also terrible. Awful. Most ISFP's Te will be bad. We are very self conscious about being factually inaccurate and appearing stupid. ENTPs seem to be able to flawlessly correct me and ease in corrections, making me not have to really worry about anything. I can always ask an ENTP a question and not really have to worry about appearing stupid (unless they suck).
As for what the ENTP gets out of it, an ENTP needs to be grounded. IS_Ps are very grounding and practical. The "go with the flow" attitude of the ISFP will often balance the mental wanderings of an ENTP in a time of worry or crisis. ISFPs are very good at making people feel good and well provided for with practical needs and necessities, and a scientist like the ENTP is pretty bad about being aware of those things. ENTPs are also terrible at knowing their relations to people and how they affect others generally. ISFPs aren't really offended by this, since knowing that someone means well is enough for us. Just like you ease in logic, we ease in how you should treat someone in a given situation or what you did wrong people wise.
Both ENTPs and ISFPs are very worried about having their own lives in a relationship. I want certain areas to be my own, and to have certain areas that I share with my mate. AFAIK, ENTPs are like this as well. I hate to appear clingy, and I hate for my partner to appear to be clingy. Also, ISFPs are willing to try just about anything in bed generally, and we enjoy new innovations in general. So apply that to romance.
And shared P. This goes without speaking. Because of this we will have similar goals and a similar way of life and decision making.
Etc.