Well I have the Rohan and Orcs all initially assembled. I did not glue on shields or riders to horses yet because want to prime everything first. The real positive is the dudes and I can play the first battle scenario with glorious unpainted minis and makeshift terrain comprised of things like books and legos.
I used liquid green stuff on the horse seams which is generally ok. I may still have to use the putty form to smooth out the seam on the horse's back. The rider's cloak mostly covers the seam depending on the horse/rider. I will say I am not seeing much in the way of mold lines. But due to size of minis and details, they do not stand out in the same way as a Space Marine for example.