I've been play testing the latest monk UA since they came out. It's fantastic. Thanks to deflect attacks and the ability to simultaneously take the dodge action and still do flurry of blows off the bonus action (for three attacks at level 10!), monks have as much or more survivability as other martial classes. Everything is no longer tied to ki, and thanks to uncanny metabolism you seldom have to worry about running out of discipline points. They're even more mobile, and are basically a fantastic class. To be honest, at level 10 my Way of Mercy monk feels a bit broken: she is the hardest hitting, toughest, and most mobile member of the party. She is just devastating against most BBEGs.
If someone is white rooming it and coming to different conclusions, I don't know what to tell you. Check the math, because you are doing it wrong. The response from pretty much everyone play testing the class is the same: monks are in a great place.