Chess Mentor seemed to me to be just more tactics too.
does chess mentor help?

Not sure about the chess mentor...
But in terms of learning the game, failing to see the use of things is usually why people fail to learn.

Usefulness varies widely between the individual courses. The opening-related stuff and the tactics compilations didn't do much for me, but I really liked some of the strategy lessons.
Ultimately it's a matter of personal preference, though.

yeah, im sure theyre useful for some people, maybe if somehow people could select openings they play so as to avoid pointless stuff. For example a recent one started from a position in the kings indian attack, something like this from memory:
I then had to guess the next 5 theoretical continuations, which doesnt help me at all in any way. Neither are they positionally educational, tactical or in any way relevant to my repetoire.
i got a trial premium membership and have been trying chess mentor out. However the lessons mostly seem to be either TT puzzles with a short blurb on the history of the game, or an opening where im basically guessing the main moves to because I dont play it. I fail to see the use of either of these.