Hard to be definitive, but there are a few of us in this community that believe there is indeed a benefit. Remember, every Sonos speaker is essentially a computer, more protection is always better. 

Surge protection, yes.  Most definitely.  Conditioner?  Don’t waste your money, they are pretty much snake oil. 

I prefer units that publish their full specifications.

Risk varies significantly by location. Modern hi rise buildings in my area are well protected and there is little reason to go overboard adding extra protection. I would characterize some of the suburbs as “lightning alley”.  In lightning alley industrial duty production is a must and if the house is directly struck, “providence” is your best chance at salvation.

From the few details that I can find regarding the Tacima, it is a step up from the nearly worthless entry level suppressors, but hardly in the industrial duty class.