I think your Altium experience might be a little stale. Microvias in Altium are really easy since at least three or four years ago. It also supports basic SPICE

I think your Altium experience might be a little stale. Microvias in Altium are really easy since at least three or four years ago. It also supports basic SPICE simulation, but I've never used it. I use external SPICE and RF tools for most of my simulation needs. I've had good success designing RF boards in Altium and the only reason I would want to use Mentor Graphics would be if I had some massive digital design with high speed buses everywhere. You get what you pay for, but Altium is a solid tool at a decent price.