We got the Full experience ticket lasting for two consecutive days, valid for Colloseum and Forum Romanum. Thanks to some computing glitch, the first attempt to buy tickets had money "reserved", no tickets arrived into my email. second attempt was a success. i have yet to check if i was charged twice (i think not, as the ticket provider stated so).
Anyways, full experience in roman forum means access to several exhibitions througout the area (villa, domus augusta, pottery showcase and the byzantine basilica maria antiqua). I was originally sceptical towards contemporary writers being cited "palace so large that eyes hurt and pyramids seem puny" but the ruin complex is truly large and multilayered. The southern part (towards circus maximus) resembles nearby caracalla spas; the part at domus augustus had videomapping teaser and some beautifully restored frescoes. the area includes a rosarium with older varieties of roses. beautiful view towards west (vatican). you gradually descend through the ruins of another palace towards maria antiqua, and walk amond the columns and temples of the ancient forum. therea re multiple ways to enter/exit the area.