As a pilot of AOC operated LJ60s, many of the written shortcomings arent really issue in our type of operations (avg flight time per leg 2h, 600-800hrs / year).
Brakes: all of our lj60s (5 of them), the oldest is from 2004 have 3 disc brakes, which doing quite OK job.
Runways. Basically we dont operate less than 5000ft long rwys. Less than that, you must do some serious calculations and be very conservative for the contigency plans. (Usual factored LD are between 4000-5000ft). When raining or contaminated you could have end up to 7000ft required /factored length. No problem in Europe (its always some proper airport nearby).
When 60 is properly maintained, it does not have worse dispatch reliability than any competitor.
But. When flying in conqested airspace the freedom to choose levels 410/430 or if you are brave enough 450, then you can fly over weather or fly more direct routes.
One of our customers, who flies usually 1200nm legs (and occasional 1800nm ones) tried the Sov, G150 and CL300s and 605s decided to buy 60. In his words, best compromise for price(flight and maintenance wise) and size of cabin and range.
For pilots view - if you like to be in cold cabin in winter(external heater is required for warming up) and hot in summer(aircon not so effective, if temperatures are more than +30C) on ground only, some occasional snags(nosewheel steering, anti-skid, generators), and have good maintenance team for backup, its quite ok aircraft to have.