I definitely thought so for quite some time. But in the past couple of days, I've smoked one of my PSD4's and a Lusitania this morning and they were AMAZING from start-to-finish. (Also a few Johnny-O's, if those count, since receiving them last week, which I can't seem to keep my hands off of long enough to age a year or so. Hahah) Anyways, I must've smoked previous ISOMs (HDM E2, PSD4, Monte 2) much too soon before giving them a chance to rest a bit, because I wasn't impressed AT ALL. (Although they were decent) But now that I've been fortunate enough to try some that have had some time to rest, I definitely can appreciate ISOMs so much more and crave them!! I can't wait to find and/or have the chance to try some more with a little age/rest on them now!! I've heard great things about BBF, RASS, Siglos, PSP2, Monte Edmundos, and etc.