Face cam is something that I want to do myself, but on a personal level I don't feel ready as I'm still starting off. If you feel ready and want to I think its a good idea to go for it as it allow the audience to get to know and like you and your personality more.
In general i think its ok, theres good quality on the video and sound and you speak clearly. However if i had to pick out anything i would say maybe there needs to be a more grabbing theme to the video, somthing that makes me wanna watch. To be honest it comes down to what audience your wanting...
If im totally honest its way too long for a trailer, it also feels too broken up in parts to the point where i think its over then all of a sudden the next game pops up. I can see what your trying to acheive by showing what your channel covers but i think you can probably look at cutting it down...
Good idea and i know what your saying, i also work crazy hours with a full time job and also work hard at making my youtube channel succeed. Its very difficult to get support as a smaller channel, unfortuantely theres no changing that but good idea.