Hi blennos,
Thanks for letting us know what you ended up deciding and for your initial comments and feedback … and congratulations on your new mattress
As you probably know from your reading here there will be a break in and adjustment period with any new mattress that can make a noticeable difference in how a mattress feels and I would probably wait a minimum of a couple of weeks (preferably longer) to give the mattress a chance to break in a little and for your body to adjust to a sleeping surface that is quite different from what it’s used to (see post #3 here.
As you also mentioned … most foam mattresses, unlike many innerspring mattresses, generally don’t have (or in most cases really need) edge support but this is also something that can take some getting used to if your previous mattress had edge support (see post #33 here).
I’m looking forward to any additional comments you have the chance to share over the course of the next few weeks.
Phoenix