I don't know if you have DAT Bootcamp or not, but they have recently added Mike's videos. I actually just started using them using them for Ochem right now. I did Chad for Gen chem and they were really great I like them a lottttt. Switching to ochem, I did the first unit (and started the second unit) of Chad's for Ochem. I felt like they were jumping around a lot and not really getting what I needed covering all the bases. I'm finishing Unit 1 of Mikes now (literally study break). I personally find them much more in depth of topics and really detailed so its easier to catch on even to simple things I thought I understood. They may take a little longer and the speed I wish I could put on 1.5, but I like them so much better so far! If you don't have an upgraded membership, the first chapter or so is available for you to try!