Doesn't keep your coffee hot and retains a lot of old stinky smells. Not worth the money. Some company's riding on their rep for too long, IMO.
Positive Product Points
Holds a lot of coffee. Makes you look like Joe Construction.
Negative Product Points
Crappy design. Retains smells from stale coffee. Doesn't retain heat very well. too much non-metal comes into contact with beverage.
Detailed Commentary
K, first, my model isnt the 2503, but a very similar model that looks like it has been discontinued... it looks like the 2503, but with a plastic drink cap. And who knows, maybe mine is defective.
I got this as a gift a few years ago, and intially thought it was pretty cool... and it was "cool", as in it didn't hold it's heat well at all. Within about 2-3 hours of having steaming hot coffee in it, it was at nearly room temperature... okay, maybe not room temp, but definitely colder than 100F. I wasn't impressed.
Plus, the design of the lid and sealing area leaves a lot of seemingly permeable (to smells) material in contact with the coffee. After a half dozen uses, a couple of which saw me leave the coffee in for over 24 hours, it started to retain a lot of stinky smells. I tried everything to wash them out, but no go... this is very similar to the (IMO) overpriced Nissan stainless steel cups that yuppies seem to like so much.
I don't know how much this item cost, but if the performance standard, it's overpriced at any price. I've seen the newer model at London Drugs for about $45 CDN.