The best lights I have are some warm white LED strips from eBay. I glued them to the top of my workbench (it's a desk under some shelves basically) and it is a joy to work there. I measured them and they are pretty close to daylight in terms of CRI, something like 93 if I recall correctly.
The only thing that makes me unhappy is the current state of LED strip driving. I have a device that takes 120VAC and turns it into 12V for the light strips. It "interprets" the output of a triac dimmer in front of it to PWM the LEDs. Very wasteful and stupid, but there are no constant-current drivers that just let you use something to adjust the current output unless you build your own. (A friend of mine did just that; the lights are amazing.) PWM naturally causes the cheap capacitors in the DC/DC converter to make noise, so I pretty much never dim them.
You could tell it was wrong just by looking. It wasn't a measurement that only appeared by looking at it with expensive equipment; you turned the lights on and instantly though "this is completely unusable". I only measured it to see how bad it was.