Ive played the demo and the full version (which i have now), the Demo is good but only has one level on two different sizes, the demo time limit is 12 minutes per round with 3 rounds until it reloads the same level, the full version is worth it and is prety fun and best of all it has no time limit, plus you can gain lots of ranks, medals, badges, and ribbons in the full if you play on the ranked server,
If anybody has any questions about the full or the Demo dont hesitate to ask
BTW Dice canada made BFV and Dice sweeden made BF1942 and BF2