In short, they're pretty spectacular. As someone who hadn't experienced business or first class travel, I was very impressed, but other high-fliers might be pickier.
Sure, there were a few tiny things which weren't perfect — there could've been a higher foot rest or a designated area to put my rubbish — but overall British Airways appears to have thought of pretty much everything.
The main draw of the suites is the space and privacy they offer, rather than the food or the plush bedding. I almost forgot I was even on a plane, especially being in one of the central seats. Feeling like you're in your own cocoon is awesome.
Read more: An economy passenger says they sneaked into business class on British Airways — and got away with it for an entire 8-hour flight
The suites have been designed to promote a sense of wellbeing, apparently, and are meant to offer a significantly quieter flying experience. I didn't notice this massively, but the flight was almost too short to tell. I did feel pretty good when we landed, but to be fair, that may have been the Champagne.
The treatment was pretty flawless too, but of course, this was a press trip, and staff knew that we were all reviewing our experiences. That said, every time I've flown BA in the past I've been impressed by the friendliness of the cabin crew.
Although the A350 (and thus the new suites) will be rolled out on long-haul flights from September following the short-haul trials to Madrid, it looks like it may be a while before all of BA's existing planes have been replaced — but the airline is certainly stepping up its game.
The question is, is it worth it?
Return business class flights from London to Madrid start from £163 ($198), though this would usually be in Club Europe (the short-haul business class seats, which are essentially the same as economy just with better food). For August, however, you can book one of the new Club Suites for no extra cost (which would be very worth it).
When the long-haul flights launch, a return in Club World from London to Dubai, for example, will cost from £1,928 ($2,343).
Currently, I'm not in a position to spend this much on my air travel — but if I had more cash to splash, why not? It's a splendid way to fly and would definitely make long-haul travel just as fun as the holiday itself.