I have this exact cab on my 2305. I bought the safety glass. Here is my review.
The fit and finish of the vinyl is good, seems are threaded well and buttons are sturdy. The material is of good thickness and seems to hold up well in the cold. I keep mine in an unheated garage and no cracks yet.
The framework has not bent on mine, although it could be a little heavier guage to last the test of time. also the powder coating (or paint) scrapes off very easy during install. not the biggest deal in the world and if you were super concerned, a strip down and repaint with a couple coats in the summer is recomended.
Install was time consuming and reading the instructions is painful.. this took me two nights after work and about 6 beers. But once all fit together, you can see where the design really was thought out to be custom to each model.
On mine there are some gaps along the doors which actually help in keeping air flow in the cab, without the constant pounding of freezing wind. It keeps the glass and vinyl from fogging and keeps fumes from collecting. I can usually plow in less than 15 degrees with my boots, long johns, jeans, carhart, skull cap and light gloves. It is cozy inside just having the break from the wind. The trans and engine blow off heat seem to get trapped in the cab and bring up the temp. I hardly notice my breath.
The door wire frames needed some wire ties to keep it snug against the main frame and from flopping all over the place. The door latch is poor and I am thinking of a simplier design like a quick release handle or something. It is hard to close now.
I have not used the hard top in the summer, but that can double as a sun shade with additional mounting brackets on the ROPS. I like it and I like the fact that it did not cost me a ton of money, easy to re-attach (this winter re-attachment took me 20 mins to set it in place and bolt it all up).
Hope this helps.