Bought this a few days ago 4u g5 spec with zymax 62 fire @28 from tennisnuts UK and this racket is super head heavy, this makes holding the zf2 3u and 100zz 3u feel even balanced, very solid racket and feels 3u.
The handle feels g4 size and definitely bigger than normal g5.
Handling isn't as smooth as any top end racket but still good and this is a singles racket and too head heavy and slow for front play but could work if your always at the back.
Racket feels premium and looks really nice but it's definitely for strong players who can swing hard and fast, this racket is harder to use than 100zz, 88d pro as those are faster and easier to defend with.
If you use and comfortable with hh hammers then this is a good racket, I only used it yesterday for the first time and obviously haven't had enough play to fully gauge it's overall playability but I'd definitely get this for singles and only get this for doubles if you can swing hh 3u heavy rackets.