There's nothing particularly wrong with it that I can see. On the other hand, an Essence without some upgrades on it is really in the same class as a Spoiler or Persuader. $2300 for a Spoiler is a lot of money in this market, as is $2750 for that Essence, but there are often exceptional instruments or unusual deals.
Many upgraded Essence basses are out there because it was the least cost starting point to add features from. I have one that looks like an SC with Europa electronics and LEDs, but has an Essence serial number because of the way it was ordered. My Essence wouldn't leave for under $3500, but that can't be a reference to set the market for a stock instrument.
-bob