Review of HK Express flight from Hong Kong to Tokyo in Economy

This is the Return flight which was not as good once on board.
VIDEO Trip Report
https://www.youtube.com/watch'v=Ot6GrSk-_hA&feature=youtu.be
F1 Bus Drivers when they're not at the grand prix they're displacing luggage and moving people into the other seat when taking corners

The Check-in Staff have definitely been chosen for their politeness compared to my other flight with a feline low cost airline, they are a different source of staff (different agency) and every one of them seemed pleasant.
I was able to check in at 11am for my 7pm flight.

Confusion with the check in signs though as it says Priority and Sweet Seats. I assumed it meant that it was the queue for people who booked sweet seats so i went there but it was only to buy the seats.

I queued up for about 10 minutes and then the check in guy said do i have an itinery for my flight out of japan.
no i dont
I used my laptop but i asked him what if i didnt have this? I'm guessing it means you miss your flight and then i asked well how do i exit hong kong ever? Then it becomes an immigration issue. So much crazyness, I departed Japan for Hong Kong, I'd expect it to be possible to use my return portion and let japan worry about me seeing as i had a visitor visa already or they should put it on their website that i need proof of leaving japan.

AS I was filming a lot i didnt have much to drink, a coke and a hot chocolate and a free mango drink for filling in an airport questionaire.
I decided to eat at the taiwan beef noodle, big mistake, i asked only for rice and they add on a tea. They didnt speak english a lot when i tried to explain that i didnt order the tea. Some were just miserable as anything. I googled the restaurant and found that someone else had the same problem.
We got on the plane via a bus and steps.

The cabin crew were friendly although the new interior is not good for me, i am 5 foot 6 and my knees touch the front seat unless i push my rear upto the back of the seat, it's uncomfortable (im guessing this is the new A320 that crams more people in) And to top it off, they had the heating on extremely high that my head was sweating, I'm sure they probably do this to get some drinks out of you.
I asked if they could turn it down and they said they've already asked, i asked for some free water but they don't have it. If they are going to make us so hot that we're dripping water i think they should have some water available. I felt like cattle on this flight. The previous flight 2 weeks ago with them was fine on the 6am flight with the old interior.
I tried putting my chair back (before i noticed how little space there was, i felt this knee in my back pushing me) I thought he was kicking the chair but no it's because there's absolutely no room to have your legs there with the chair back in some positions.
I mean for £68 return I think i shouldn't really complain but there's a tipping point to where you would prefer to pay more.
They also told the japanese guys that they need to throw away their drinks that they brought on board and that she will help them do it. They pretended to not speak english (just like they did to me until i said dont speak english that's waht they all say when they dont want to talk He then was friendly with me and spoke english lol, i did prewarn him about the drinks but that was as an icebreaker to get him talking english to me)
Ran for the Immigration as we arrived at the gate around 11:45, I missed two sections for my passport number which i had to fill out and i was baggage searched in customs but with all that I was out at the monorail by 11:55, 10 minutes or 15 at most if the japanese guys watch was a bit fast but we landed at 11:35 anyway.

Tokyo train seems to only be quiet in the afternoon when i normally travel its not as busy as this