"Premium" tile grout?

We have been recommended to consider using 'premium' tile grout on our soon to be re-tiled kitchen and hallway floor.
Apparently this doesn't need sealing, and will not stain, and will look good for 15+ years. It is more expensive, but does any one have any experience of it, is it worth it, is it harder to apply (professional will be doing it not DIY), any advice on specific brands, things to watch out for? thanks
 
We have been recommended to consider using 'premium' tile grout on our soon to be re-tiled kitchen and hallway floor.
Apparently this doesn't need sealing, and will not stain, and will look good for 15+ years. It is more expensive, but does any one have any experience of it, is it worth it, is it harder to apply (professional will be doing it not DIY), any advice on specific brands, things to watch out for? thanks

Also interested.. Will be following thread!
 
Premium flexi-grout is a pretty standard thing these days. Strong, doesn't crack and so on. Most tile shops should be supplying this as a standard (and if not I would be running).

Anyone who wants extra to supply something that is an industry standard is kidding themselves.
 
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