I just started my first test prop cycle 2 weeks ago. I'm definitely feeling the prop. I'm much stronger, and pumps are amazing. I take 25 mg's or aromasin everyday too (Twice a day, I take 12.5 in the morning and another 12.5 about 7-8 hours later. I didn't really notice my libido going up much. I thought it would, but I assume that the aromasin is inhibiting my libido from increasing much. I still fap every night tho, but then again I'm 22 and my test levels are damn high as it is at this age. I don't have any problems getting it hard, everything seems normal to me. If anything, I feel like im blowing out bigger loads tho, haha. From what I have read around 25 mg's is a normal dose for most men to take everyday. The reason I take 25mg is because I'm prone to forming gyno. Hope that helps.