The Wi-Fi actually works
Once upon a time, I may have warned some people to never, ever use Wi-Fi on a cruise ship. And now I stand corrected. The Voom Wi-Fi on Harmony of the Seas is literally faster than my Wi-Fi at home. The connection speed on this ship is enough that you can take Google Voice or WhatsApp calls without needing an international calling plan. And if you want to spend your entire vacation streaming Unbreakable Kimmy Schmidt, you can do that too. It's not free, though: one device will run you $15 per day, two devices is $22.50. But can you really put a price on being able to Instagram the Ultimate Abyss? No. No you cannot.
The ship comes to the Americas this summer
So now you're probably thinking, "Well, gosh, fast internet, crazy food, water slides? I'm in!" But check you bank account first. Royal Caribbean isn't running a charity, and a seven-day cruise from Barcelona through the Mediterranean will run you anywhere from $1,700 to $2,100 per person this summer. If you want to wait until the ship is stateside, that price drops to $850 - $2,000, depending on your class of cabin. None of that includes drinks either, which can run from $5 for a beer to upwards of $15 for some drinks at Bionic Bar. But none of this is out of line with what new cruise ships cost, and Harmony of the Seas is the coolest new one to come around in a while.