ThinkPad should be okie, my T410 is still running happily. IBM technology is still one of the best, the reputation is there, and Lenovo would not let it go bad.
I quite like Lenovo for the fact that it's more easily to open up and change its parts as compare to other mainstream brands. I got a HP pavilion 15 recently, and kinda regret getting it over Y520.
If you're finding a sequel to a "real thinkpad", you may not find it anymore. In 2012, the Lenovo chief already said they'd like to woo Apple/Mac customers especially with their thinkpads.
(But why would an MacOS user bother with an unclassy laptop running windows? The logic?)
This is evident in their attempts over the years in cutting the thinkpad DNA from the last real thinkpads (20 and 30 series).
The most notable compromises are:
-Chassis lost its highly ergonomic contours, traded with flatter designs
-Since 40/50 series, T/X models are no longer using IBM hinges
-Reduced rollcage reinforcement
-7 row chiclet
(It's not bad, but some key layout can be improved.. There's a reason why classic thinkpad users find that keyboard is equivalent to a desktop one).
Improvements are:
-Thinner and lighter
-Hardware refresh (Battery life, its not a Lenovo intrinsic improvement)
Chances are new thinkpad users won't know what the new designs lost since it will still be an upgrade from an ideapad. It's the users of older thinkpads that will reminisce over the compromises in build quality, ergonomics, robust support and power tool software versus the classic models.
Lenovo is expanding the thinkpad brand. But in the process, they're using more ideapad and Mac design cues to woo new customers. But they're achieving this by modifying the no-nonsense worktool models for the worse and in some cases, cutting on build.
You can find lots of commentaries on a professional laptop repair (Louis Rossmann Group) how Lenovo turned an "IBM Thinkpad", to a "Lenovo Thinkpad".
It's not the end of a good thinkpad yet. But it is heading towards that direction constantly.
So if the question posted is whether Lenovo is destroying the Thinkpad? IMO, yes. If IBM didn't exit the PC market due to the commoditisation, they'll be no doubt better than what Lenovo are building.