Hi maximus721,
First of all you can lookup almost any web host and there's going to be someone unhappy with it. So I'm not surprised to see what you found about APlus. If you searched hard enough you'd probably find similar rants about SBI!. I've never heard of this company (APlus) but after a brief look it looks like a standard web hosting company with reasonably priced plans. I've never used them so I can't speak on their services.
As far as SBI! and learning on your own, you absolutely can and many people do. But some people learn better by having a guide and that's what SBI! is. It makes sure you don't get sidetracked with the design and flashy intros and teaches you the importance of finding the right niche. If you think about it, making money online is more than just design. It's about planning and ultimately you are launching a business whether you call it that or not.
Yes, SBI! is a lot of reading. So don't buy it if you plan on rushing through the guide. Trust me. I already had design experience when I first bought it in 2003 so I did skip over a lot of things with my first SBI! site and of course it failed. The next time I took my time and actually followed the guide as if I were a complete newbie and I think it made a difference... especially in the brainstorming phase.
So the bottom line is, can you learn what SBI! teaches you on your own? Of course you could but at the same time, something has to be said for the fact so many of their customers wind up near the top of Alexa
http://results.sitesell.com I don't think many other hosts can say this.