It's next part of the infinity series and as for me, much better than Ever 17.
First, it doesn't force you to read 4 routes just to get to the true route, Remember11 only has one route but with multiple endings, most of which are, actually, bad ends.
Second, it has a more realistic and mature characters instead of grotesque unrealistic schoolers in Ever17.
And third and the most important is genre. Instead of light romantic Sci-Fi like Ever 17, Remember 11 is Hard Psychological Thriller/Sci-fi with much more suspense.
Oh, and in case you're interested, a lot of mysteries and unexpected plot twists are still there. Although, Remember11 has a problem (well, problem for many other fans, I personally count it not as a problem, but as a good side). Remember11 does not answer all of the questions within a plot and has an open ending which means you should yourself find a solution to some mysteries. Hints are all in the novel.
Oh, and Try to read Chaos;Head(In case you haven't seen a horrible anime-adaptation of it. It really one of the worst adaptations ever. Even plot was changed at some points) or Steins;Gate (Again, If you didn't watch an anime, which much better than the Chaos;Head adaptation).
Well, just passing by with advices.