Okay, I'll throw in my 2 cents.

First, I am a face person too. So I think I can give you a good point of view.

The V4 base is free. Download her. Simple.
What about the morphs? I think getting the morphs are a good idea, the body morphs are few, but which ones are there are well made, better than V3. The facial expressions are also an advance and the eye movement dials are SWEET!  But you will not be impressed by the V4 face shaping morphs. Not that they worse than any face morph sets you can get somewhere else, No, what I mean is the V4 face shaping morphs are a step down from V3.

V3 had beautiful face morphs, the type that look sculpted, not like any of the magnet-based smooth sort of morphs you will see in other places outside DAZ. The V3 was face morphs were like 3D scans of a real person or sculptures. In some places, there were sharp edges. But the new face of V4 is very "smooth," without any detailed edges. Do you have Apollo?  In some ways, her face shaping like his, it can morph in cool ways, but lacks detail. Does that make sense?

V4's tongue is an improvement, and the teeth take a new approach too. I haven't decided if I like them better than V3 teeth, but I like what they can do. (NOTE: She is not Mimic ready.)

V4 has a new way to do eyelashes. It's more like Miki in a way, but there are two layers for lash materials and the top ones are separated.

V4's eyes have innovations. It's a new shape with new materials, and even a tear layer on the eyelid. That all sounds cool, right? It would be if the iris can be fixed.  The iris has a hard edge stairstep-like edge. This is a problem, imho, and it makes the eye look more like a stuff animal teddy bear eye than a realistic human eye.  I've already made a few attempts to morph the iris to get rid of the stairstep. So far I haven't come up with a better shape.  The iris is actually not attached to the eyeball at all. It's like a prop inside the eye. Make sense?

Anyhoo, long story short. Get the V4 base. Play around with her. If you have an extra $10 to $15 to spare, at least get the morphs.  You can always decide to buy more V4 add-ons later.

I picked up the Domino for V4outfit because it looks very cool and I want to Wardrobe Wizard the leg covers, coat, belt and shorts for the Bishie in my Runtime. lol  ;)

p.s. I am attempting to create a new face for V4. It will be made in an external app so it won't use any of the morphs from a morph kit. Whether I come up with a winner or not, I'm sure someone will come up with a good face with lots of character for V4.

bB