agviz
I've used this deck quite a lot for readings, mainly one card draws, and I'm really connecting well with it so for me it reads very well! And I'm one of those people who sometimes buys gorgeous decks that just won't work in readings *coughShadowscapescough*
Yeah, I find it tough to know if I'll connect with a deck. The gorgeous decks don't always cut it. For example, I have an old TdM deck that is pretty far from what you'd call sexy. And yet it's stellar for reading. So how does one truly know? Possibly only by taking a chance, buying a deck that seems appealing, and working with it for a while.
I feel that that the Mermaid Tarot is easy to connect with because A) It's fairly RWS and B) It seems personal and honest to the artist Dame Darcy, who is a wonderfully wonky person.