So, I ordered one of these back in June, and this thing has been amazing! My heat pump package unit died in May, leaving me without AC for the summer, so I used a Hisense that I picked up from Wood last year (and now my niece is using since school started) and an LG window unit that I got from a big box store. This one has been keeping my bedroom cool all summer long, and because of the inverter compressor, it is very quiet compared to the Hisense I have, but way more powerful. The LG is also an inverter, which turned me onto the technology and why I bought this thing in June, and is why the package unit I ordered for the whole house utilizes the same tech. Tonight was the first time that I really got to test out the heat pump mode, in anticipation of the cooler weather that’s coming to the Mid Atlantic. The test was a resounding success. The unit took about 3 minutes once it kicked on before it started blowing warm, then hot air, and the built in condensation pump worked swimmingly! Even when the new whole house package unit arrives and I install it, this thing will continue to be used in my bedroom during the warm months because I like my room cold when I sleep, and this will allow me to keep it cold without cooling the entire house. The whole reason I got that Hisense last spring: these things can also be run off of my generator 
There were some lemons based on previous threads, including something I had to fix, but this thing is freakin’ amazing!
For more info, check out the June Thread