I have brewed this twice now. The first time it came out around 1084 OG and it held up for a good couple of months. Sumatra at flameout and Kona in secondary for about a week.
The second and most recent time I brewed it, I did Sumatra at flameout again, and Jamaica Blue Mountain in secondary. I kind of forgot about the secondary and let that sit for about 2 weeks.
With the second batch, the coffee flavor was strong and came out wonderful for about the first 3 weeks or so. It took first place in our club's homebrew competition against 8 other "big and dark" beers. I submitted it to the LHBS competition which was judged somewhere between 11-14 days later and the notes I got back said it was full of green pepper aroma and flavor. Sure enough, I took a draw from my keg and it's a green pepper bomb.
I was advised to cold press the coffee next time by the LHBS, but that was blind advice - at the time they had no idea how I added coffee to the beer.
I will brew this again, but I'll be a little more stringent on the coffee timing and I might just do both coffee additions to secondary and see how it goes.