Technically, i have had exposure to solar power before. Who could forget those solar calculators that would sometimes work? The you have the solar lights (basically operating off rechargeable AA batteries) that would occasionally work. You could never fully rely on either.
This time i decided to borrow my sister's Jackery 100W solar cell. To be fair, i tried this on an overcast day. The peak wattage i was getting was about 20W. If i was trying to charge a Jackery 240 at that rate, it would only take about 12 hours, the Jackery 1500 would be something like 60 hours. It would likely be drained in less than 3. Seriously, something like the Jackery type power station is best charged through the wall and used for camping/emergencies (though they are only rated for 500 or so charging cycles).
So, do i think solar is the next big thing in energy? Of course not. Solar relies on cells that have fairly low efficiency (like 23% or so) that will wear down over time - and, ironically, heat and exposure to UV radiation. With solar, you're always basically just charging a battery. Will you ever get your money's worth from solar? Probably not.
There would have to be dramatic increases in solar cell efficiency/technology and battery technologies to make them remotely feasible. They will never be able to meet energy on-demand needs. The amount of batteries and land that would have to be set aside for "solar farms" is vast. Then you have places like where i am with a significant amount of "gray days" and drizzle.
Solar does have its uses, (like low drain lighting/batteries) - but will never be ready for prime-time as the premier energy source.