No stain, no etch, heat no problem.

I have a light Caesarstone countertop. I have had no problems with staining from any foods, including red wine. I did have one experience where I left a can sitting overnight near the sponge and the countertop must have been wet. In the morning, there was a rust ring. It was difficult to remove. I was afraid to rub too hard because I recalled a post where someone's mother cleaned the counter with something abrasive and it took some of the shine away.
As far as the heat resistance goes, there have been other posts about this subject. From what I understand, they can withstand higher heats briefly. To me, that translates to warm dishes, but not stovetop or oven to counter directly.

We have a light Caesarstone countertop.

No staining.
No etching.
No heat problems.

Now, on heat, anything above 350F, I use trivets or mats to protect not only the material from thermal shock, but to protect people from getting burned after the hot pan is moved off the stone. This goes for any material granite, tile, quartz that can retain heat. I also avoid contact to avoid anything I can't see well on the countertop surface from sticking onto and reacting w/ the underside of the very hot pan.

Also, the MFG says it can handle "brief periods" of heat up to 350F. Above that, it runs the risk of damage - either from scorch marks or perhaps cracking. I have never seen or heard of thermal damage yet.

On staining, even on wine, curry, or saffron sitting overnight. One time I did spill methyl blue indicator dye (very aggressive staining agent, used in chemistry) - I'd say a whole ounce or so. It really had me scared at first as it didn't just wipe up like everything else - it spread and penetrated deeply. To my relief, I did manage to buff it out with damp paper towels after 4-5 minutes. Had it been anything else - granite, marble, tile grout - it think it would have permanently stained, even if sealed.

Caesarstone, or any quartz material similar, is really a great material .

Yippee! I'm excited by these comments. My remodel started last week with ripping out of walls etc so I had time to change my mind. We picked a whitish Caesarstone with a little grey that almost looks like marble. I was told it was stain resistant so I'm glad to hear that I only have to worry about cans and water.

I can vouch for Caesarstone like the others here. 2 weeks ago I left a glass of red wine on my white Misty Carrera countertop over night, not realizing I must have spilled it when putting it down (maybe I drank a bit too much ;). Anyway, come down in the am and there is a big ring of dried red wine underneath the glass. Took a damp sponge and it came right up, no scrubbing, nothing. Countertop looks as good as new.

We have light Zodiaq, no stains, no scratches, no heat problems!