I've given up on solar ones. I've tried a variety of brands, and price points, and they have ended up with me being disappointed within a few months. Granted this is highly dependent on your lot - what trees, what direction into the sun, time of year as the sun moves, cloud cover, etc.
Low voltage lights are very easy to install for the average homeowner. With a cordless edger it could be a 15 minute job for a 5 or 6 light setup. I think people are intimidated because its electric and outside. But you literally plug in the low voltage box, place the cord, and clip the lights into the cord. There isnt much to screw up.
I tried 2 different types from $5-20 (for a 5 light setup) per light over a 2 year period just because i didnt want to spend 80 dollars on a transformer for low voltage and then 15 dollars per led light; which has now been running without issues for years.....It was a very dumb decision on my behalf. The whole press the on button and stick it in the ground with solar is very appealing. I get it.