I'm pretty much self taught from YouTube and set up my channel to help others with finding new combos/tricks. I learnt the beg/inter/basic adv moves at a pole studio and then hit a ceiling and had to turn to DVDs, books, workshops and Youtube. I bought the Felix Cane Box set of 5 DVDs as well as Art of Pole Vol 3, 4, 5 and like chemgoddess1 I haven't really used them primarily becuause I already know the moves. I've watched them once each. If you're trying to learn new moves then either Felix or Jamilla's DVDs are good. The lessons are good, very well structured and tips are provided in both.
Both Jamilla and Felix break the moves down so you can see where to grip and which muscles you need to engage. Why not consider downloading Pole 101 Handbook (Beg, Int, Adv) for $10 from Amazon. It's written by an Australian Tracey Ecclestone, and provides conscise information for each move. I'm an advanced pole dancer and didn't find this useful, however, if you're just learning or making your way through your pole journey any of these will be great. Many of my friends love the Pole 101 Handbook. Each move has a description on how to get into the move.
I haven't seen Alethea's but her style is quite different to my style, so I won't be purchasing them. I also purchased the Pole Positions book from IPDFA which is quite good, if you don't have YouTube/Internet access. With this book you look at the picture and figure out how to get into the move yourself.
Hope this helps. :)
SonicXplosion xx