I would say more convenient than Scheme. I can't think of any Scheme implementations that come with as much stuff as a standard Racket installation (before adding in extra third party libraries). Gauche, maybe, or Guile.
The biggest difference is that in Racket, cons cells, and thus lists, are immutable (the Scheme #langs like r5rs use a different incompatible type for their conses). There's other more subtle changes but that's the one most likely to bite people used to Scheme. Well, that and `if` taking exactly 3 arguments.
The biggest difference is that in Racket, cons cells, and thus lists, are immutable (the Scheme #langs like r5rs use a different incompatible type for their conses). There's other more subtle changes but that's the one most likely to bite people used to Scheme. Well, that and `if` taking exactly 3 arguments.