I've got both 1+2 and most of the other videocopilot stuff. I think it's a great great resource, if you really need it. My advice and tip though, is not to think backwards, meaning that you should try not to master a specific vfx technique like a muzzle flash or a explosion for instance, and then try to stick it in a film just cause it looks cool or adds production value. If you have a script that really demands a specific shot that needs vfx and the story can't unfold properly without it, then by all means teach yourself and use tutorials to your advantage. The reason I'm quite precocious is cause the amount of times I've seen random short films where I'm like - haha- loser action essentials 2!, or I can even point to specific tutorial, is extremely worrying. Too many "Kramer Clones" out there that don't even take the time to differentiate even slightly or make it less obvious.
Personally, I'm extremely extremely extremely grateful to Kramer because he first got me into AE with his enthusiasm and skill, and slowly over the months and years, I've managed to teach myself AE and advance certain methods that I can apply in different scenarios and not just to make copycat videos. But to be honest, it does take a big investment in time and determination as you will be dealing with frustration and anger a lot! But if you do persist, you will have another great skill in your bag.

@Azza_act
I had the good fortune to sit down with a top Hollywood VFX guy. First off, consider Nuke over AE, that's where the excitement is right now. Main point, the VFX guy's key advice that he kept repeating, is "Don't use any VFX unless it's absolutely necessary". This is kinda what stefanos is saying as well. Don't get seduced by the powerful softwares out there. Yes they're sexy, but like a beautiful chick, she can ruin your movie before you know what happened.

If you are the type of guy that never sleeps and if you don't have a family, go and do it all your self. Ae is an issential tool that is never to late to lern (atleast you than can tell why it has taken the vfx guy so long to come up with something). As for the videocopilot stuff, its verry good quality but kind a like Stefanos said, Kramer is the "world After effects tutor" and your vfx will look like The stuff kids are posting on Youtube every other hour ... Clients can't tell the difference though. Its rediculous how many ae freelacers have tutorial stuff in their reel. Some don't even care to change colors ...

A good rule of thumb that applies to most things: Just because you can doesn't always mean you should.

Nuke is great if you're going to try to get a VFX job and have an extra $5000 to spend. If you're an indie filmmaker, look at AE ($995) or some of the cheaper apps. (If you're on Mac, look at Motion 5, which is only $50.)

A good way to learn After Effects is to take the free "basics" course on VideoCoPilot.net. Take a glance at it before you buy, and see how you feel about the learning curve. Oh, and don't forget you can download a working 30-day Demo of AE for free.