ECBlend's business model is to offer (and encourage) maximum customer choices. Nearly everything can be customized with ECBlend juices: flavor strength, nic concentration, base blend, additional flavors, amount of sweetener, various levels of menthol, even creating one's own juices from scratch, the best of which are then offered as Customer Creations. ECBlend has also expanded their juice line-up to include liquids made with natural and/or organic flavorings and 100% VG juices. Combine this with good pricing (inexpensive), fast shipping (even via 1st Class), and attentive customer service, and the overall profile makes for a successful juice vendor.
Consensus of opinion seems to be that ordering ECBlend juices with extra flavor is typical.
My personal experience with their juices (I've ordered about 25, mostly in 5ml sample bottles) has been hit-or-miss, and I wouldn't list ECBlend among my 'go-to' vendors. For instance, I'm not a big fan of their tobacco juices. That said, I do vape a couple of ECBlend juices that I always keep in stock, and I reorder those as needed, usually when the "10020" 20% discount is offered.