What is Reddit's opinion of Casio FX 260 Solar II Scientific Calculator 5" x 0.6" x 2.9"?

From 3.5 billion Reddit comments

Wall decor is fine. I did tests in my kids’ room and just threw a sheet over their bookshelf. The art on the walls was never mentioned.

Tests are any time, 24/7. I took a lot from 11p-1a. I also took some with 5 minutes’ advance time. If a slot is open, you can take it then. And keep checking back if you want because sometimes earlier ones open up at the last minute.

I used this $9 calculator and it was fine: Casio Scientific Calculator... https://www.amazon.com/dp/B071R3H9WB?ref=ppx_pop_mob_ap_share

I never heard of a new $3 scientific. BUt you have to buy the battery, it doesn't come with one?

This one to me is the cheapest OK scientific at under $9:

https://www.amazon.com/Casio-Scientific-Calculator-FX-260-SOLARII-S-IH/dp/B071R3H9WB/

These people will sell you minimum 72 of these unkown brand weird calculators for $4.09 each. So Minimum order $294.48 plus maybe tax and shipping and who knows if they even work.

https://www.amazon.com/Casio-Scientific-Calculator-FX-260-SOLARII-S-IH/dp/B071R3H9WB/