I dont have a very good relationship with Grapefruit!
I was given the seeds and to be honest I dont think they were kept in the best condition. I managed to get a few plants though and the smoke is nice enough. I was just dissapointed with the actual plants themselves. Not great lookers you could say. I doubt this is the Grapefruit strain in general but more the actual seeds I had.
The high is quite heady and I tend to find I am quite active after smoking a few. The smell gets better the longer you leave it curing and I think mine took about 8-9 weeks (maybe abit more) to finish. Small buds, bugger to trim at the end and I wont be rushing back in that direction anytime soon.
Dont let this put you off though. I have smoked some lovely grapefruit in the past however I just think it is abit tempremental to grow! Go careful!
Hope this helps mate