FSA's website is a labyrinth. If you don't have the exact part number you often can't find the item you're looking for.
OMEGA/VERO PRO chainring
This link takes you to the Omega / Vero Pro items.
As for quality? Cannondale have chosen to fit the FSA rings to their venerable Si crankset (same as my Slate) using a new Cannondale spider with the FSA 120/90bcd.
This setup is now on two of their (while not quite flag ship) more interesting 2018 models.
My Slate 105 has fairly basic FSA 52/36 rings and hasn't shifted badly on me yet. My older Arkose 1 had a FSA 9 speed crankset which worked well, and I only changed the it for a Sugino 601 because I couldn't get a small chainring less than a 33t with the road 110 BCD at the time.
But as you say you get what you pay for, and this option could get exist Cannondale users a 46/30 or 48/32 set up for maybe under €100/$100...