Up front spoiler alert - I don't own an X-300 so I can't provide any first hand information, but I can suggest you try to locate a copy of the April 2019 issue of Motorcycle Consumer News
(motorcycle version of Consumer Reports - no advertising) and read their review of the X-300. It's quite detailed, as usual for this magazine, and offers both praise and criticism. Overall they rate the X-300 a three of a possible five.
The article's sub-heading reads, "Kawasaki's wispy entry-level bike is user friendly, easy on budget." The opening paragraph reads, "Renowned for its potent engines, Kawasaki has pushed the envelope with the introduction of its Versys X-300. It's an economy-level light tourer and daily commuter, in response to recent demand for low-priced and beginner-friendly two-wheeled transportation."
After detailed assessments of engine, transmission, suspension and handling, brakes and wheels, ergonomics, instruments and controls, and attention to detail, the closing "value" paragraph reads, "The shortcomings beg one question: What can one rightly expect [with ABS] for $5,799? This is not a premium, round-the-world motorcycle. This is a classic, get-what-you-pay-for proposition. No one could objectively call it a bargain. It might be good for a brand-new rider, who is not the slightest bit interested in speed and torque, but seeking inexpensive transportation with a hint of ADV styling. If not, there are better bikes at this price point."
Their Highs and Lows sidebar - they call it "Smiles and Frowns" reads: "Smiles" - ergonomics; handling; novice-friendly, while "Frowns" reads - dismal power, torque; insufficient brakes; useless windscreen.
The article may cause happy X-300 owners to rise up and threaten to never buy another copy of MCN, but over the years, in my humble opinion, their articles are usually objective, fair and accurate though I may not agree with their conclusions.
I considered an X-300 as a smaller, lighter alternative to my 2008 Versys 650, but after examining and test riding one, decided on a BMW G310. I may be considered guilty of heresy by some but I'm pleased with my choice. I still love and admire my Versys 650 and feel it's one of the best all round motorcycles available.
Oh, and I wouldn't recommend one to my mother unless she has longer legs than I have.
PS - Don't shoot the messenger!