The yield will depend on how you grow them. I have grown them outdoor and indoor. The yield is higher outdoor but they do not end up as dense and "ROCK" hard as the indoor. On avg, you should be able to get at least 6 to 7 oz per plant indoor but I do know guys who only get about 2 to 3 oz indoor. Dif growing style than me.
The high is something else. I once took a full hit from a bong... that was a big mistake for me... guess I am a wus. The high comes on fast... like in 60 seconds. The first 15 mins I was flyin high... laughing at everything.. everyone looked like a cartoon, I couldn't stop giggling to save my life. Then it hit me even harder and I ended up stuck in a chair with my head inside a bucket puking for about 2 hours. Then I had get help to put me in my bed... It was crazy!
Now I stick to about a half joint and I feel great. I get that feeling in my cheeks like I am about to laugh... almost like my cheeks are gonna cramp but dont.
All I can say is... if you smoke this stuff... dont plan on driving anywhere or doing anything that requires much thinking.
Good luck!