I have several meters, two of them are Luna Star F2's and they are both always dead on accurate. I believe them to be one of, if not, the most accurate meters around. I sometimes use the spot attachment as well and it is equally accurate. In addition to those, I have a Luna Pro SBC hich is a very good analog meter that has always served me well. I also have a digital Soligor spotmeter which has always been accurate after I had it calibrated. I have a Calculight XP that has been around awhile and it is a highly under rated meter because it is every bit as accurate as the Luna Pro SBC. I use this meter with the fiber optic probe with my view cameras on certain shoots.
Consider batteries when you look at meters, some can use pricey cells.
There are plenty of good meters out there, the key is to buy a name brand and make sure it has been well taken care of. Compare readings of one to another. If you question a meter's accuracy have it checked by a technician before you plunk down any cash.