You've highlighted all my concerns with the Freedom without the headrest, but the freedom chair has lots of very positive online reviews (which mainly have the headrest) but nowt for the Please.
The please is the exact chair we use. It is reasonably comfy, but I find that the arms are a little hard, it’s a bit too square (doesn’t conform to body shape) and as I mentioned previously, they break a lot. It’s important to set your weight properly on the chair so that the recline mechanism works properly, but they are typically quite fiddley.
Probably boils down to whether you want the head support or not
Edit:
The thing to keep in mind though is that I sit on the please for a number of hours during the day (8-5), whereas the human scale is sat on less.
The thing I like about the please is that I can sit on my leg and slouch quite easily - less easy to do on human scale as it’s quite shaped. Also, the actual seat extension mechanism (on human scale) can be a bit annoying - it slides backwards when I push it, where as I should have to unlock it first.
Taking into account the above info, I’d probably rate them both a 7 or 8 out of 10.
Hope this makes a bit of sense!