what do you guys think of http://bottomupcs.com http://bottomupcs.com ? I just started reading it and feel I've learned a lot already but it feels very unfinish

what do you guys think of http://bottomupcs.com http://bottomupcs.com ? I just started reading it and feel I've learned a lot already but it feels very unfinished. I wish they would keep the same pace but go more in depth in each topic.