I have very mixed opinions on this.
On one hand this breaks titles free from the Funimation empire, which is good for both competition locally and overseas, as this then frees up titles to be licensed by other companies here in the UK for example. On the other hand, Viz's subtitling itself is, in my opinion, worse than Funimation due to shared problem of a lack of typesetting and less legible text due to the smaller border.
There is also the major concern which is video quality, and unfortunately (excluding the titles Justin did for them) Viz don't have the best track record in this regard. First they were encoding for PC RGB levels with trash encoding, then around 2016 they were encoding in the SD colour space but their encoding was
much better. Jojo Golden Wind Part 2
finally saw a respectable release from them encoded in the correct colour range and correct RGB levels (
albeit not free from issues as their encoder will every so often spit out anything from an average of one to a few frames showing some blocking and worse encoding which also affects prior releases -
Potential spoiler warning for second image comparison).
That brings us to now, where a month and a half after Jojo's authoring,
someone (who I assume isn't Subatomic due to the disc structure/encoding setup) authored Osomatsu-san - which once again has been encoded for PC RGB levels and thus has heightened gamma. I can't really speak for the encoding of the episodes themselves as Osomatsu-san as a show is both low resolution and
incredibly noisy, but the trailers on the discs
looked atrocious compared to their Subatomic Digital authored counterparts which causes me a lot of worry for future releases.