The downside is that they don't really have boxes to fit square decks, and their postage costs have put people off buying- I've had no sales at all from the UK!
I'm not too concerned about this. I'll be publishing a companion book too, which thegamecrafter can't do. I plan to offer the 'deck only' version through TGC, but will order a run equal to the book run for myself, and package those in a nicer set. I realise that's more risk to me (and more work!), but I want this available. So, if an ill-fitting box is part of the 'deck only' option, maybe it'll encourage more buyers of the set

(though postage may still be high from Canada, but I'll do what I can).
As a reader, the smaller size cards are great for swooshing around on a table and creating large spreads in a small area. I have toyed with the idea of releasing it on large cards too, and may well do in the future as they can be riffled (and I do like to riffle

) .
Just to clarify, did you use the 2.5" square cards? I was leaning more towards the 3.5" ones, as the smaller size seems tiny (though I'd love an option in between!). If so, how easy/difficult is it to see the images clearly?
As said before the square shape adds depth to the reading (as they may fall beside the reverse position in a 90 degree to the right or left). This is a pro but for those who don't read reversals might be a con.
I don't usually read reversals myself - but when I do, I use a different system than most people seem to. I have a plan to outline this (along with the extra 2 directions, if I go with squares) in my book - but to highlight the fact that this is my preferred method, and that I encourage readers to use whatever approach works best for them.
Keep the feedback coming - all has been very helpful so far <3