I order a set of samples for all of the available products they have so it would be easier for me to decide which end product we would end up selecting.
The print and material samples are excellent both in quality and presentation (they come up in a booklet format so it's easier to store them).
Unfortunately I cannot say the same about the envelope samples, only a set of loose pieces of paper with different colors were sent inside an envelope. I personally got the feeling of receiving confetti instead of samples. Nevertheless it was sufficient to make a decision on the the envelope color we would end up purchasing.