Initial thoughts: friendly locals, very low English level, surprisingly good gym and cafe scene, quality grocery stores, clean air, walkable, stores accept USD, much larger expat scene than I would've assumed...only lacking a beach, but that's within 3 hours drive. Also, lots of French here (and Chinese).
Dew Point (a better measure than humidity): 76F (above 65 starts to get really uncomfy). So, what does this mean? Well, it ain't a positive. It means that even if you're sitting in the shade, after about 10 minutes, you will start sweating, on your forehead, in your crack, under your arms. You could be riding in a tuk tuk, if more than 10 minutes, let's say you're going to the spa or a resturant, you will arrive sweaty, needing another 10 minutes to cool down. Come in December - February to avoid this.
J-Tower II is the best building in the city. Take my word for it. In fact, it's the best building I've ever stayed in.
Let's talk about the weather. The heat combined with the humidity is a real killer. Temperature goes from 78 degrees at midnight to 95 at midday. One of, if not the most, humid city I've lived in which gets quite annoying and affects a large part of your life and health. Constantly dehydrated with bright yellow piss. Want to explore mid-day? Sure, but it'll be an uncomfy experience. Accidentally sweating on your phone while typing. Want to go to the gym? Fine. But your towel and clothes will be so drenched they'll need to be hung dry, smell up your house, and cause you to do launch twice as often. And, don't even think about hanging them outside. With humidity so high, they won't dry.