Growing indeterminate tomato varieties brings its share of efforts. you have to give adequate attention to pruning otherwise the plant grows to almost 20 feet. I faced this experience. Although the plant looks huge, yield decreases as vegetative growth is more.
So please give thought to the amount of work involved, almost everyday pruning is required.
As pointed out, yield is 3 times the outside yield and it lasts for almost 1 year.
And you get to take advantage of off season jump in rates.
Good luck.
Nikhil