It's a great CAD program and at $199 for a perpetual license seemed to be a lot more affordable than AutoCAD, but...
Less than 12 months after purchase, the company released a new version, but instead of providing a free upgrade called it a "major release" and asked to pay an additional $150 to upgrade, which was absolutely unreasonable.
Just over 12 months after that, the company is completely blocking me from using the software (asked for new license key), this time by saying it's not compatible with Windows 10, even though the license was purchased after Windows 8 had already been released and long after Windows 7 was released and all Windows 7 & 8 programs are supposed to be compatible with Windows 10.
In summary, the company tries to scam money off of you every opportunity that they get and paying $350 to use the software for only 2+ years, until who knows what trick they come up with next, makes this software completely unappealing, considering he learning curve involved.
I would not recommend purchasing IntelliCAD from this particular company. There are other companies selling IntelliCAD who appreciate your business and at least don't try to scam you.
the only benefit to this software was its perceived cost, which is obviously an illusion.