They are probably better than other $250 scopes, but I did not like using one at all.
The field of view is very small, the clarity is marginal.
If you can only afford $250 or so, then it might be ok,
I just got the Nomad. It's packable and I feel it has a little bit better light gathering in the early morning and late evening than the Impact. If the Skyline wasn't as bulky, I'd get it , but would weigh down the pack a little more than the Impact or Nomad.