Why is Uniswap V3 better than V2?

Could you elaborate on the advantages that Uniswap V3 offers over its predecessor, V2? Are there any significant improvements in terms of transaction efficiency, cost savings, or liquidity management? Furthermore, how does the new concentrated liquidity feature in V3 compare to the previous model, and how does it benefit traders and liquidity providers? Additionally, are there any other notable features or enhancements in V3 that make it a more attractive option for users?