I bought a very similar one and was worried about the non-heated water. It’s not bad, really. The water in the tank has been sitting there awhile, so it’s near to the ambient room temperature. Not “warm”, but not chilly, most of the time.
Considering that a Toto washlet would run me close to $1000 between electrical contractor fees and the toilet hardware, a $22 thing to squirt water down below is a fine trade-off I’m willing to live with.