Inconsistent streaming quality, as others have noted, frequent audio drop outs, and worst of all, the ads usually stream in loud and clear while the content often stutters through. I tried this for a while and then decided to stop paying. You can upgrade to the ad-free level on Hulu for a few $$$ a month and although you wont get all the CBS content there, CBS isnt unique enough for me to spend the $$ plus watch ads with mediocre streaming.
Grumpie about Paramount+, v4.4.5