Legit journals charge open access fees to make your article available in order to get more citations. My University has $3000 dlls a year grant for open access publications, it is cheaper to our university to pay fees than having to subscribe to paid journals. JATIT is legit, I have published few articles there, it is also listed in the Australian ERA Journal list. It is indexed by Scopus that is the minimum standard for credible journals. JATIT is a low ranked journal but credible enough. To those people that ask why should we pay money for a low ranked journal, the issue is time, many journals take two years to get something published while JATIT can get your publication published in 3 to 6 months. Many of us are on a time clock for tenure and cannot afford to wait 3 years for a publication so we rather pay. Also, we need citations and low ranked closed access journal generates hardly any citation.
In few words, JATIT is OK but I wouldn't bank only on this journal to get tenure. It is fine to have few articles from this low-ranked journal but you need better to be considered a credible researcher.
Our University does not use Beall's list, the main criteria for evaluation is indexed by SCOPUS at least but preferably by ISI Thompson rueters. The Beall list is very biased, JATIT is in Pakistan so anything that comes from India, Pakistan, China, etc., that charges money goes to this list right away disregarding indexes, impact factors, etc.