is she just drawing or painting in photoshop for fun or is this something she will be using to pursue a career?
Cintiq’s are a bit pricey but wacom is established and has great customer service and reliablilty. It is worth having her use a standard tablet if she will be getting into the inustry to do concept or digital painting etc.
Drawing is a bit of a tough transition with a standard tablet. I dont have any experiance with the other tablets mentioned but if you have a bit more info on where she is at it may save you some money if she doesn’t end up pursuing it
Standard tablet doesn’t seem like something she wants from the choices
This looks pretty good haven’t heard of anyone using it so would be nice to get some input from users that have used both. Much more cost effective and has enough levels of sensitivity so easier to relate to real-world drawing. I might go with this option to see if it is something she sticks with.
One thing that wacom has that I am a fan of is different style pens with different pressure settings and abilitys such as the art pen which can rotate brushes as you paint.
Let us know what you find and maybe some users here can help