Well, to quote an old saw, "Depends on what you're going to use it for".
List of things to check:
1. Range: you can get range finders out to 3km, but if you're only shooting to 500-yards, why spend the extra $$ ?
2. Convenience - some range finders require (realistically) 2-hands to operate, newer smaller ones you can run all functions using one hand only
3. Reviews - Some reviews are really good indicators
4. Brand names I prefer for laser range finders:
Leupold
Nikon
Leica
Swarovski

I've used a Swarovski, but they are priced out of my range
I have a Leica 1200-yd. LRF, it's nice though is large and requires 2-hands to operate
I also have a Nikon small single-hand LRF, don't recall the max-range, LCD image, fits in my pocket, I use this most of the time. Not too expensive.