I have owned a few but tried many , I own a Vortex Razor 27x60x85 and it is very good glass. I use spotting scopes for vapor trials with center fires and look out past 3000 yards and their is a huge difference between tier one glass and cheap glass , cheap glass you zoom in on visual defects in lens , so you look at a blur zoomed in , it doesn't work .
Buy the best glass you can afford . Places like euro optic swfa , optics planet, bh photo , sells new , used and demos
some of the better ones are lifetime warranty so a used one is as good as new , ones I liked were , Swavorski , Ziess victory , night-force ts 82 , vortex razor 85 , lieca APO 82 ,
these are top lines sometimes u can find serious sales at online stores , then lower lines I don't know much about then except they dont work at long ranges due to quality of glass ,
I am a long range shooter I have tried all the lower lines and you just cant spot same things and long range
It is better to have tier 1 glass at 8x then cheap glass at 25x
Most low priced spotting scopes do not have the glass to magnify the amount it says
Hope this helps if you were close by
Id have you look threw a few brands , sample list at swfa is good place to get a good used set , be careful on eBay some people selling clones and fakes better to get from a reputable shop or locally where u can see it