It seems that the Aging Room Quattro has a general acceptance as a decent series and that would be the current and only produced line along with Quattro Sonata. Looking at the Aging Room history they have offered and retired several labels .

Understanding it's an arm of a Altidas who has many budget lines, AR seems to have held some respectability. The "Core" line is still available from some sellers, but isn't current production or at isn't listed on AR Altidas as such.

Anyone been smoking from the core series lately? I see Leebot has posted several times in "What... smoking" thread

Tiver, funny you should mention that. Last week I got a fiver of the Core Habano in the mail from the small place. I’ve got Core Maduro on my list, Solero, and a I think one is called Bin 2. I haven’t smoked any yet because I want to let them rest.

I think the core are fine. I think I've only had the maduro. For maybe a little more money, I would buy (have bought) Solera or the Quattro Original (used to be the F55).

I’ve got several Quattro in my rotation and I’ve got an unopened box to age. I’m building out my Aging Room stash with fivers of blends I haven’t tried.