The sales people are very knowledgeable in their field of expertise which is networking computers for schools/businesses as well all other IT related needs such computer repair service or server setup etc.. I have nothing to say about CS&S because they did what we needed at that time without any problems! They were really professional with us throughout our business relationship (a year). We never had issues while working together; just good customer care from start till end was given by them when it comes down to buying new equipment's like servers hard drives ect...