I am just under 5'3" and about 105 lbs. When I tried a LL Remix 47 it felt OK on the shop floor, so I rented it. Being cautious, I took it to a pond first, where within 5 minutes I found that there were two uncomfortable pressure points at my hips. The boat's width was good--it was the seat's sidewalls that felt a bit too narrow for comfort when I actually paddled it. If your wife has very narrow hipbones this may not matter.
In addition, I could feel that I was pushing the load limit of the kayak, no matter what LL's claimed paddler weight range is (I think the upper limit for it should be under 100 lbs). It sat lower in the water than I would want in anything but dead flat water (such as that pond). It was super-easy to roll, being such a low, narrow boat with snug outfitting. But very obviously not the right size for me to use for WW paddling. I doubt it's a good choice for your wife's 110 lbs.
I bought the Jackson Side Kick that I had previously rented and found comfortable. I would've preferred something about a foot longer and a tad narrower, but there was no such kayak made. The Side Kick has worked out well for me. It is forgiving, easy to roll, and Jackson's suggested weight limit is more realistic. Funny thing, though...when I bought it they gave 120 to 130 lbs as the upper paddler weight. More recently, they gave a lower weight as the upper limit! Can't remember what the new number was, maybe 100 or 110 lbs. I suspect this is their way of bumping small paddlers into buying the "adult size" Little Hero instead of the Side Kick. Caveat is that the Little Hero is very wide and deep for someone of your wife's and my size. I'm glad I bought the Side Kick.
Last fall I demo'd a Dagger Axiom 6.9 in San Diego's Mission Bay. Had high hopes for it, and liked how it handled. But my feet were cramped in that very low front end, and the low front deck severely restricted leg-pumping room (I LOVED the low rear deck). So I disappointedly returned the boat after trying for less than half an hour. If it was uncomfortable within such a short time, there's no way I would like it for my typical paddles.
Maybe you could buy used 2 used kayaks that fit child and wife well instead of 1 new one that is a poor compromise. And no, I'm not selling my Side Kick...unless there's an Axiom 7.4 being made. (The next size up, Axiom 8.0 is too wide and tall.)