Cisco study partners? Are they good to have? Or is it better to go through the Cisco certification path alone? What does one expect from their study partner? What if they are not on the same level you are on? If that is the case you will have to waste your time waiting for them to catch up to your skill level. Yes you could help them catch up to you and refresh yourself on some concepts, however that is valuable time you could be spending learning new topics. What if you and your study partner have different schedules? I am sure that will effect studying greatly. A time that is convenient to study for you may bot be so convenient for them.
Personally I have given a study partner a chance when I first started studying for my CCENT, and all I have to say about that is that I h\am never going to have a study partner again. Coordinating schedules was such a hassle and I felt like I was just wasting time often. Lets just say that the study partner and I only lasted for about a month. I truly believe that the path of certifications is a lonely one. You can really only rely on yourself to get the studying done and not expect someone to be right their behind you. I feel that is almost impossible for two people to be able to match each others study habits.
So my recommendation is to just go along the path alone and just focus on bettering yourself everyday. If you do come across a study partner one day and want to give them a shot, go for it, it may work out for you. I am not saying that all study partners are bad, it is just that I had a bad experience and am not willing to give it another chance.