I've sampled at least a dozen different Gurkhas. None were awful. Some were OK; some were good, some were outstanding. None were competitive with other brands at MSRP. Most are decent value at cigarbid/CI/C.com-type pricing.
The brand just seems to inspire strong negative reactions due to extremely high MSRP, too many blends without having any enduring flagships, and tendency of Gurkha to engage in hyperbole which pisses some people off (Rolls Royce of Cigars, HMR @ $700 per stick, etc.)
They have a few that fill their niches very well:
Nepalese Warrior - stellar cameroon that can be had for ~$3 at online budget outfits
Titan - Wonderful, full flavor - no value at $30 msrp, but delicious and worth c.com/ci prices of $5-6
Micro Batch Liga TPB-1 -- Ridiculous name, but under the radar outstanding box-press corona corojo -- I'm well into my third box....don't tell anyone, but I haven't paid over $2 for one yet
HMR -- hard for me to imagine ever paying $20 for a cigar, much less $700. But, they do sell some of these and get much more value in the publicity of having one of the highest priced production sticks in the world.