It costs £199 ($259) for a one-hour, three-course dinner with wine, but there are cheaper options such as breakfast or afternoon tea.
I arrived at an area by the side of the O2 to see two huge cranes which would be used to hoist us into the sky.
The entrance area had been nicely done, and I could imagine it would be lovely on a warmer, more summery day.
I had a quick look at the 22-seat table which would soon be raised 100ft into the sky, and I was pleased to see a cover, should the ominous heavens decide to open.
There's a big tent with a bar where you check in and wait before your flight — if you're not great with heights, it might be wise to get a drink to steady the nerves.
Then it was time to be strapped in.
Our chef and two members of staff were already in the middle of the 22-seat rectangular table, tied up to harnesses.
Wine was poured, and my starter was presented just before we took off.
The menu was created by Social Pantry, which has three cafes across London and also does catering.
It was time to go up! We were slowly raised a short way off the ground for a quick security briefing before being lifted to 100ft high.
Two tables go up at once, and it was cool to see the others to get an idea for what we looked like, too.
It didn't feel scary, but it was pretty windy. My napkin didn't last long on my lap before blowing away.
Luckily, the sky was beginning to clear and we even saw some rainbows.
The table was never entirely still, but it wasn't rocking in the wind or anything.
There was red and white wine on the table, and plenty of it.
We got to watch our chef plate up the main course in front of us.
I went for the chicken, which was genuinely delicious (despite my average picture). However, the harness held me back from leaning too far forwards to get to the food without dropping it on myself or down below. If you were hit on the head by a pea falling from the sky, I apologise.
The set-up probably wouldn't be that great if you were a large group, as you can only really talk to the people next to you, unless you're sitting round a corner.
Still, the sun was coming out and the vibe was really fun, largely thanks to the playlist of tunes playing pretty loudly.
Needless to say, many selfies were taken.
The chairs rotated and also reclined, which was mildly terrifying, but also very cool.
Pudding time! The options were a citrus tart with raspberry coulis, lemon crisp, and honeycomb...
...and a vegan brownie with summer berry coulis and honeycomb. If you play it right and befriend the chef like I did, you might get to have both.
It was pretty breathtaking to see London in a completely new way from a brand new viewpoint.
Since landing, meals on the ground have never bored me more.