sounds good!
1. can you find out the exact company and how financially solvent / robust they are?
2. do you get much freedom from doing so? You can do alot more if you have freedom. like learn new courses, or even sideline something else of your passion.
3. are there good reasons for staying in this current firm?
4. any near term career progression possible? Small firm usually means limited growth as there isn't much of a ladder to climb. unless of course they give you equity and profit sharing.
finally, if it's a close choice between the two, why not make a counter offer to your current boss to see if a raise is possible?