I differ than most as Prop is my favorite. 100mg ed is equivilant to 832mg of Enanthate per week as Prop contains more actual steroid than longer esters. You should make very good gains as I remember my first was 100mg EOD and I made great gains and loses in bodyfat. 350mg per week brought my test levels up to 1900 which is 3-4 times the average level, and I would assume that 700mg per week would bring it up to around 4200 because of the dosage related curve with most steroids, so I would consider your cycle a heavy one for a first or second cycle.
Any pain in my experience with Prop goes away after a couple of shots in the same muscle - in other words if you are alternating Lquad,Ldelt,Rquad,Rdelt (for example) then by the 3rd shot or so in the Lquad you shouldn't notice as much/if any pain - True for me at least.