I’ll throw in my 2 cents because I was in the position of trying to get away from elogsite and onto something new. Decided to try out crosscheckhub because they aren’t charging while it’s in beta so why not?

Uploaded my elogsite CSV files no problem. They don’t log in for you or access decs at all. I don’t think anyone has that capability right now. What I did was log into epays, go to a pay sheet and save it as a pdf. You can then upload that pdf and all your flights are logged in a matter of seconds. So once a month you spend 2 minutes keeping it up to speed...and epays has the last 3 years of pay sheets so no worries if you miss a month or few. So far so good imo. I understand Crew121 works the same.