I had a buddy bring me some Smug juice. I've had over 50 different cigar extracts in my five years of vaping. I don't consider myself an expert but simply a cigar lover that has been looking for an actual cigar flavor.
Honestly, the Smug cigar was terrible. I didn't taste cigar and had the exact experience as you. As written above,
My Vape Juice has excellent cigars. You can even use them in your setup if you order them in 30/70 PG/VG.
Want2Vape also makes excellent cigars but they are 70/30 PG/VG and are not filtered, therefore leaving a lot of residue in the atomizer.
Also, as written above, cigar flavors do take awhile to steep. Getting My Vape Juice cigars STP (steeped to perfection) is an excellent idea.