I’ve used Mr Encinas’ software for designing composite steel beams, and found it easy to use, surprisingly flexible (for a “fill in the blanks” interface), and best of all, largely self documenting. I’m an engineer who always struggles with documenting calculations owing to time constraints. Being able to print out a nicely-formatted output that reflects a classic hand-calculation approach is a boon. I highly recommend this product.
Regards, and thanks for a great software and the superlative customer support!