No scope is unbreakable, but I do like Vortex overall. I've had 5 of them. 2 bottom-end Crossfires that tanked-out early on, a Diamondback serving me well on a .22 semi auto, a Gen.1 SPARC, and a Viper HS. The Viper HS has been on a .223 for years. Countless outings chasing groundhogs in the spring/summer, a handful of coyote hunts in the winter, numerous range trips load testing. It is worth every penny I paid for it, and the glass is good for the price point in my opinion. The Crossfires sucked, but I wrongly assumed that they'd be a decent, cheap option for 22s. Neither would track properly, and one was an original Crossfire...the second was an "improved" Crossfire II. Vortex were great with warranty service. Courteous on the phone, quick to act, etc. Just won't buy another low-end scope from them.
In the interest of full disclosure, my Viper HS may be moved down to my 17HMR as I just bought a VX-3 6.5-20x40 VHR for the .223. Almost reluctant to swap it in all honest, I never seem to miss with the Vortex. Good mojo in that scope/rifle for me!