"Pretty good, but not quite amazing.."
Twiends is quite good actually.
If you are willing to pay $1 (USD) then you can (currently) get 2500 homepage featured views.
This will lead to you getting a few hundred real followers pretty quickly. I think it's spread over a 7 day period.
Having said all of this, there are a lot of features I'd like to see that don't currently exist.