I bought some 130 years ago from the Formulary but oddly enough didn't get around to mixing it up. I wonder if the powder is still good? We're talking 1998 here.
Be that as it may, the limitation to me always seemed the price. It may last forever, but it sure is expensive, at least when bought from the Formulary. Probably mixed yourself (but don't you have to get glycin from the Formulary too?) it's less so, but that's a hassle I don't need.
We are talking the one that PF sells as F130, correct? This one:
LPD has been readily available, much cheaper, and lasted long enough but I might try 130.
Years ago a friend used a developer called Printofine later renamed Posifine, made by the Acufine/Diafine people. I tried it and didn't care for it - a bit warm and low contrast for my taste IIRC, but it did last even longer than LPD. I don't think it's available any longer though.