tastes great = Yes!

good or bad? = Could be both I suppose, or neither.

add butter? = I do, I think it helps suspend the fat better and tastes good.

I use about 15g coconut oil and 15g butter - works out to about 200 calories I guess give or take. This is all I usually consume for breakfast, skip lunch and have dinner.

Enjoy! but I suggest in moderation

Funny Dirty Movie I did on the subject...

http://downhaul.com/lowcarb/2017misc/coffattyMovie.mp4