General rate: Negative
Be very careful in dealing with this company. They do not stand behind their products. Their web site used to advertise "ILS uses a public key encryption algorithm to generate and verify license keys". I found out the hard way that they do not generate keys using public key encryption - they use DES encryption. I say the hard way because I purchased the sources and discovered the discrepancy. When I complained, they said too bad we don't give refunds no matter what. (They did offer half refund if I deleted my copy leaving me with nothing for my money). They have since updated the web site to eliminate the "generate" part of this phrase. So, be very cautious when dealing with them.