I mean it's hard to say Gemini didn't improve at all, moving from cradle mould to seamless mould is already an improvement. While Aeroclassics and Phoenix are going downhill quality-wise, I do personally think Gemini is doing ok. Phoenix did invent new mould like IL96-400 and IL-62 but in reality their quality control is no where early 2010s era (like the ever enlarging seam gap in A330-300 wing joint).
I looked at my stats last year I acquired more Gemini (~30) than Phoenix (~10) suprisingly (vs NG ~80), and the quality is ok, especially GeminiMACs which others don't produce.
Are they NG/PM level yet, clearly No, but they are definitely competitive in many area (military, 777, 787, RJs, 321neo with mask, MAX8/9, 350)
I think what truly bad is 1) inflated prices. They should be priced around JC, not higher than NG. 2) large boxs, I hope they can just use those tiny box for all RJs instead of using a standard size box for stuff like E195-E2 which takes lots of space