
Midea
Duo Series
Cools large spaces well, but fragile window tabs.

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This is a crazy take. Dual hose systems are pretty efficient. I got one in my previous place and it had so much extra cooling over what I needed I opened my door and put a fan there blowing out to share some cool air with my roomates.
Sure, I had a Dreo twincool 1200 btu smart inverter portable. Thing barely had to run to keep my room at 68 when it was 95 outside. Like I said I opened the bedroom door and stuck a box fan in there blowing out to share with my roomates. Thing kept the whole 2 bed and bath upstairs much better than it was, with a constant 68 in my room. With a bigger box fan for better air flow I bet it could have regulated the entire upstairs to 68.
Buy the Dreo! I just bought the Dreo 515S portable air conditioner and it is one of the best portable air conditioners we have ever had! In fact it is very quiet, very cold, we have a 800sq ft apartment and it cools the whole apartment with our bedroom door open with a fan blowing! Honestly we have to use blankets on our couch that is how cold it is! You won’t be disappointed! We had a Toshiba portable air conditioner and it was so loud when we bought it and it also never got as cold as this Dreo and I believe it even was made for 550sq ft apartment or rooms! We are very happy with our Dreo purchase! Good luck!
For a single hose option, the Dreo portable AC I purchased last year served me well for 5+ months of almost continuous operation in multiple heat waves.
The dreo portable ac makes my bedroom 66 degrees in 10 mins or less. Its amazing
Year two in a loft conversion bedroom. Just buy one. Seriously I'd have died in year one if I hadn't been persuaded we need it. We got it. I loved it. We got it out (obvs a bit early and weather is going to shite in the next two weeks). It's currently a comfy 19 up there - about to go to bed - as per the app and we haven't actually got the window properly sorted again this year yet, as in not quite properly sealed up. Just DO IT! Ours is a DREO if that helps. Edit: Noise, I quite like the hum. No different to the sound in a decent hotel room abroad. Partner seems to snore less loudly with it going. Odd, but great!
I would go Midea. I was between the Midea and a Dreo but ended up with the Dreo because the housing is white vs the Midea housing being black. The Midea has a bit more power and is smart equipped but at the time the Dreo was on sale, so that's what I went with. It does great for the livingroom. If I need another, I will get the Midea.
End of reviews

Midea
Duo Series
Cools large spaces well, but fragile window tabs.

Midea
4-in-1 PortaSplit 3.5 kW Portable Air Conditioner and Dehumidifier
Energy-efficient split system, but bulky with frequent drainage.

Midea
PortaSplit 8K
Powerful split system, easy setup, but needs frequent draining.

Danby
14,000 BTU (12,000 SACC) 3-in-1 Portable Air Conditioner with Inverter - Dual hose / Remote / Wi-Fi (DPA120CBIMBDB, DPA120CBIMBDB-RF)
Very durable, long-lasting, smart Wi-Fi control.

Whynter
ARC-1230WN
Efficient, dual-hose, no water draining, with Wi-Fi.

Ranked #1
Midea - Duo Series

Ranked #1
Midea - Duo Series

Ranked #1
EcoFlow - WAVE 2 Portable Air Conditioner