Is Submissions 101 a viable training aid?

Ive been Doing Kickboxing and TKD for 9 years now... but Ive always wanted ground skills that these styles do not offer... I just had a new baby boy so I won't be able to afford a BJJ or MMA school anytime soon. However, I've been drilling on the videos from Submissions 101 and 10th Planet Jujitsu @youtube.com and I can now memorize and preform submissions and get the taps... with either a co operative partner or while rolling from various positions.. I'm now comming up on sweeps.. I know a lot of people trash talk on learning by video but I've been doing it for three months and have improved a by leaps and bounds. I love all the Gogoplata variations and Rubbergaurd is a favorite tactic of mine to date... so I guess my question is what is your opinion on training by vieo?