While I believe the first model is useless money spent, I do believe the second model is much better and entreprenuers should not avoid filling out an angel groups investment application based solely on the fact they use Angelsoft to process the application. I have utilized the process myself and while I did not get funding from (I did get face-to-face meetings though) the angel groups I submitted to I found the application process easy and organized. I am familiar with several groups that utilize the Angelsoft platform and all are very reputable.
Long story short, blindly sending your business plan to just about ANY investment group (excluding YC and similar models) is not going to get you anywhere. Introductions and networking are the only true way of having a chance at any investment. I can think of other things to spend the $250 on than a membership with Angelsoft. On the other hand, if you have interest in a specific angel group or VC and they point you to Angelsoft to submit your business plan, etc... know that (a) it is free for you; and (b) that Angelsoft is a legitimate platform for submitting your application.
Note that I have no affiliation with Angelsoft other than I have utilized their platform to submit to several VCs.