There are many differences, but the main one is that you should share the load of the song.

Your left hand is almost free from its rhytmn job, because there are a bass and a drum for this, and your main job will be:
1) pad chords
2) a couple of solos here and there

So the main problem is your satisfaction: will the joy of playing in a band with other people be enough? Will you like your "reduced" role?

I enjoy very much playing in band, but I have to say that I am not a good solo player, and sometime I need to hide myself behind the group.

Ciao
Riccardo