My old agency ran 2100 series LED bars on all of our cruisers. We had problems with every single one.
The 2100 looks great, it's one of the best looking bars in my opinion. And the LEDs were sufficiently bright, no complaints there. The lack of any sync ability sucked, but that's par for the course of that generation.
Now, the issues. The halogen takedowns and alleys sucked, were halfway blocked by the lense covers, and blew bulbs out left and right. The LED modules never had the same shade of blue module to module. From Green to purple, code 3 sent us every shade of blue except the same shade. And that's if the modules worked. Half of them either didn't work at all, or only worked halfway. The lense covers sucked, they all either yellowed and/or cracked, and the clips rust.
I'll never run a Code 3 bar again.