I love Dovo! Right now I've been using my "Black Star" model and it hasn't let me down. Got it free from my brother and all I did was gave it 10 x-strokes on a barbers hone and it was good to go. He only shaved with it a handful of times and hadn't used it in quite some time. So for just 10 strokes on a barbers hone, that's pretty impressive to me. I would definitely pick up another Dovo in the future.

As for where to buy, I'd just go with whatever the best deal is. Just make sure it is truly shave ready, where ever you purchase from. I prefer vintage as I feel the razors have more character. Old or new, any razor can shave great. So the choice is ultimately up to you and depends on how much money you're willing to spend.