I had the KS Z Gundam it`s wasn`t good and not what you expect from Bandai, even it`s weapons are lame.
On the other hand I got HGUC version 2 weeks ago, it`s far better than KS version stiff and stable and the only let down is when changing to Waverider, it needs to change parts but I`m not complaining, I liked it a lot . Now the only real KS I want if Bandai makes it = GUNDAM MKII !