These binoculars surpassed my expectations in every way. The optics are vibrant and clear, the binoculars are well made, non-nonsense, and portable. We've since bought another pair (not on sale) for a wedding couple.

As you can see in the photo the Zeiss Terra 10x25 ED are tiny next to a medium sized pair of Minox BL 10x44…. But in daylight they are every bit as sharp and clear as the Minox!!!
They’re super comfortable, plenty of eye relief and extremely lightweight!!! Yeah they struggle in low light situations but the only cure for that is larger glass!!
They do a phenomenal job with long distances too with very little atmospheric distortion…
Without knowing much about them I took a risk, not really because I paid less than $200 for these on B&H’s used dept!!!!
I absolutely love luv these and stick them in my pocket on almost every morning walk I take with the dogs!!!
We typically cover 2-4 miles of trail and we often see birds of prey hunting and or eating a kill so I am able to catch nature in all its glorious splendor without any stress or fuss because these are so easy to carry!!
I’m looking at the Terra 10x30 and 10x40 too because they’re also so small, tough, water/shock proof…
I still love my Minox BL’s but they can stay looking beautiful inside on the window sill…
Phenomenal bino’s in a wonderfully tiny little package!!

I loved my Nikon Monarch 10x42 so I bought the 10x25 version for air travel. But I lost them during a bag search in London, so these Zeiss binoculars replaced those. 

I could have gotten another Nikon 10x25 for less money, and I KNOW I would have been happy with them, but this Zeiss glass is so bright and clear that I'm super happy I shelled out the extra cash for the upgrade. 

Quality binoculars is probably one of those things one shouldn't cheap-out on, since it's potentially a life-long investment. In fact, when I buy a large pair, (and I plan to), I will look at Zeiss first.

I love these binoculars for birdwatching. Strong magnification but really compact and lightweight. Easy to take with me on every walk or hike.

This was purchased as open box item. I was a little concerned about the condition of the binoculars, but it turned out to be a nonissue.
Shipping to NJ was very fast and I got them next day. Everything about them was in perfect condition, both aesthetically and the quality of the image.

I compared them to Steiners and Nikons, I also have. Both are larged (35 and 42 objectives) and was impressed at the image quality. It is very sharp over whole viewing area, center and corners. An this is while the physical dimensions of these are tiny in comparison with others. As expected, the brightness is a little better with the large objective but neither 35 nor 42 will fit into your pocket while this binoculars are so compact and light I can carry them all day long with me. The pouch also helps to keep them compact unlike a hard case which is not pocketable.
Overall I am very happy about these both the quality and the price are exceptional.

I'm giving 5 stars based on the Zeiss 10x25 Terra TL's balance of the inherent trade-offs encountered with compact binoculars and the fact that I was able to buy them at Open Box pricing. I am an avid birder and the sad fact is that bigger models with superior optics with their wider, sharper views, improved shadow detail, and longer eye relief do provide noticeably superior viewing experiences and a greater number of positive bird identifications. The problem with such binoculars are the cost, size, and weight. These Zeiss Terra TL's mitigate those issues nicely, with sharp viewing through a physically robust but lightweight piece of kit at the kind of price that typically means an inferior viewing experience. They can never fully replace larger high quality models but are welcome companions when light weight in a compact package is called for. Overall sharpness is fine, handling good, eye relief and field width are adequate, focus easily, with a quality feel and Japanese manufacture.