To give you some context, I applied to a bunch of schools last year with the help of a traditional admissions consultant. I ended up with a total of 8 rejections (7 without interview, 1 after interview & waitlist). The bad part of my profile - Indian, male, 4.5 years of work experience. No great brand names or real feeder companies on my resume. Fairly mediocre grades for an Indian (6.6ish GPA). The good part - Slightly diverse work experience and background, lots of ECs and community involvement.
After I was rejected last year, I contacted Maria and offered to pay her for a "ding analysis." I had already bought the tool, but figured a ding analysis would help me figure out what went wrong. Maria responded to my email and refused. She said that I should go through all the modules, and I'll be able to figure out exactly why I was dinged. She said that if I couldn't, I could get back in touch and pay her to get it, but she didn't believe I would need it if I finished the modules within the Lab. She was right. I not only figured out where my application fell flat last year, but also knew exactly what parts of my background to highlight this time around. The Lab has a section on how to address potential weaknesses (I obviously had a lot! :) ). Additionally, the career module of the Lab is pure gold. It really forces you to think through your story, how realistic your goals are and what you want out of business school. I'd say that my entire narrative going into applications this year was due to the career module on the Lab. Absolutely fantastic stuff.
The Resume section is pretty amazing. It had the characteristics of a "bad" resume, and my previous year's Resume seemed to fulfill all these characteristics. I ended up making my own Resume format based on the advice given here and it worked wonders for me. The school-specific and essay advice is incredibly detailed and useful. Maria really walks you through what the school/question is really looking for, what resources you should touch on and how to make your essay strong and genuine. Each essay question has a video of Maria walking you through all these details. The effort she's put in is fairly obvious, absolutely nothing is superficial.
I could probably go on and on about ApplicantLab, but the best way to see if its right for you is to sign up. It is a fraction of the cost of a traditional consultant. Buying it is a no-brainer if you want world-class admission help without the heavy price tag.
P.S - Just wanted to add that I got into Tuck and some other schools this year with ApplicantLab, but my traditional consultant last year told me not to even bother applying there. She felt that I did not stand a chance at all at Tuck and actually refused to work with me on that application. This should tell you enough.