I enjoyed smoothies on a few occasions here. The price isn't bad at all. The smoothie shop is attached to a boutique store (with an open doorway between) that isn't so kid friendly if you do not want kiddos touching spendy clothing and such.
The coffee is excellent and there is moderately well-situated seating, but not catering to small children. The entry and ordering area is often crowded in the morning and bakery items are almost always gone by 10 a.m.
The staff is pretty friendly and you can expect to see the locals here -- climbing folks from next door are "regulars" and tromp in wearing harnesses and such to grab the morning grub, opening up fun conversation for curious kids!
Great stop but be prepared to spend about 15 minutes waiting for your coffee/smoothie/sandwich (or whatever you ordered) if the a.m. crowds have descended!