It's not greebles that bothers me, it's the rampant use of 'greeble components' on military vessels. Look at modern warships. Yes, they've got fiddly bits, but generally these are only visible because they cannot be put behind some sort of protection.
But so many people just coat their military models in greebles. Sure, it looks neat, but it's really stupid from a practical standpoint.
And you don't need tons of greebles to make a ship look interesting. Case in point, the Hyperion cruiser from B5. Very few sections that are exposed components, but still cool looking.
Anyhow, to get this back on topic, the ship here makes me think much more civilian than military, because of all the exterior fittings and the general randomness of the components. More like a deep-range explorer vessel, perhaps. One with a bunch of daughtercrat to do surveys, landings, etc. I think that'd be a neat tack to take with it actually.
My two cents.