I just checked Pluto on the PSU channel, and it's unwatchable. It's gritty, but I turned it off before the shadows started. Pluto was good for one BB game last year, and horrible for the rest.
Sure, it's free, and you get what you pay for, so no complaints other than it takes up space on my Roku.
My only option for Root games is through the Audience channel on AT&T Watch TV on my tiny ass computer screen because AT&T refuses to create an app for the Roku. That I am bitching about because it costs money.