What are some alternatives?
When comparing LocalBitcoins.com and Kraken, you can also consider the following products
Coinbase - Bitcoin, safe and easy.
Bitfinex - Bitfinex is the largest and most advanced crypto-currencies trading platform.
Electrum - Electrum is an easy to use Bitcoin client.
Binance - Cryptocurrencies exchange platform
Uphold - Move, convert, transact and hold any form of money or commodity. Instantly, securely and for free.
changelly - Exchange alternative cryptocurrencies.