They indeed do stain but that's ok.
The lids are a nuisance.  The water gets between the glass and metal and then drips on to the pot before it dries. Drying with a cloth doesn't help.
Nice and flat for glass hob.
The strainer in the lid is handy. 
A nuisance that the handles get hot.
Would rather have had 3 pots instead of 3 frying pans. I really only use one frying pan.
Nice they are made in Tailand.
Fairly light pots.