I used 200mg EW for 8 weeks, gained 25lbs, kept pretty much all of it. Unfortunatly can't say how well it worked alone as I did d-bol at 25mg ED for first 4 weeks.
It was my first experience of deca and it will be my last (on its own anyway), it shut my libido down big time. Bounced back only about 3 weeks after clomid (thats 6 weeks after last injection).
Other than that, no sides