Yep... Sony does a good job and the camera is a super all-rounder... but....
The question is whether you need full frame... I mean the Fujifilm X-T2 has a very good ISO performance itself... a much better autofocus than the Sony and the images are so good in JPEG that you don't have to do much to them. Add to that the film effects Fuji has... they are awesome... say what you will about the integrated effects... Fuji's are GENIAL!
On top of that, the lenses are not necessarily cheap with Sony.
I myself have the A7RII and only have the 55mm and 90mm. If I didn't have these... I would probably have ended up with Fuji.
I don't see any big advantages of going full-frame anymore.

In general, the image quality with VF is significantly better than with APS-C sensors. You have to decide for yourself whether the Alpha 7II is still up to date for you. It depends on how you want to use the camera. As a tip, the conclusion of the test by digitalkamera.de: With the Alpha 7 II, Sony is already bringing the fourth incarnation of the first mirrorless system camera with a 35 mm sensor onto the market - and it is also something to be proud of. The outstanding feature of the Alpha 7 II is its integrated image stabiliser, which explicitly stabilises almost every adapted lens. Although the necessary mechanics make the body of the Alpha 7 II somewhat larger than that of earlier models, the camera remains noticeably smaller and easier to handle than a comparable DSLR. The now much stronger grip also makes the camera feel even more secure in the hand. The image quality of the Alpha 7 II is impeccable and easily allows a sensitivity of ISO 6,400 if an output size of about A4 is sufficient. The FE 28-70 mm 3.5-5.6 OSS lens that comes in a set with the camera may look a little rickety on the outside, but its inner values are completely convincing. For those who like to adapt lenses from other manufacturers or old glass to a 35 mm camera, there is currently no alternative to the Alpha 7 II. This also applies to videographers, who can only get their hands on an even higher-quality tool with the Alpha 7S. But apart from videos in 4K resolution, the Alpha 7 II is hardly inferior to it when it comes to filming. But the Alpha 7 II also has its downsides: The continuous shooting rate is still quite low and the autofocus could be even faster - making the Alpha 7 II less suitable for sports and action photographers.