MJ-872 is a bit outdated now, but still an excellent little unit- 4 xpgs, lovely wide throw (but enough power to still have decent range). But also, very nicely made, fully waterproof, effective mount, decent battery, even a nice charger. You can buy worse lights for 3, 4 times as much. Put it another way, it’s an awful lot closer to the best lights out there than it is to the old DX cheapos. I paid £70 for mine- and it’s a lot better than 3 single XML lights for £25 each.
But, no doubt there are other new kids on the block that have it beat.