Get to Kraken.. (Opinion Wanted)

Should I get it crackin' on Kraken or naw?!

"The best bitcoin exchange is needed for serious and professional bitcoin traders. Bitcoin security must be impeccable. Banking relationships must be sound and reliable. The trading engine must be fast. Order types must be advanced. And profits must be able to be multiplied with Bitcoin margin trading so you can leverage long bitcoin positions or short bitcoin positions."

What's your opinion of the Kraken Exchange?
https://www.kraken.com/