I've changed meters so many times over the years, probably 8 different types in all.
Coding, sometimes I forget, I did that with the One Touch Ultra and Freestyle, forgot to match the code on the meter to the code on the box, realized a few blood tests later. They are great meters, but if you're forgetful sometimes, then avoid those.
Accu Check Aviva, that comes with a key code that you place in the meter. LOVE the meter, really love it, but if I didn't use the strips fast enough and the keycode expired, I lost money. But still love how fast that meter sips blood, I think it's the easiest to use as far as getting blood.
Relion by Walmart, excellent meter, sips very well, no coding required and you can't beat the cost. The only reason I'm not using it now is because a freebie Contour USB I got when there was a free offer which you sometimes see on line. Also no coding, strips sip blood easily.
If cost is an issue and you're close to WalMart go with that, the Relion. If you are good at eBay and can buy strips cheaply and confident with the seller, get an AccuCheck or Contour. If you'll remember to code the meter when you open a new vial of test strips, which really isn't hard to remember, I just forgot a few times, Freestyle is nice and also can be found cheap enough on eBay.