If I may add - looking at Russian design (industrial or military) over the last 75 years - they always seem to build larger and more grand than the West. It doesn't mean more sophisticated, sound or advanced.
National Geographic, or maybe Discovery Channel had an interesting show on the history of submarines and ballistic missiles, recently. Some of the central points were that while they jury-rigged Sputnik into orbit earlier that the U.S., their technology aptitude wasn't nearly as capable. We learned to miniaturize, which was a huge benefit, but the Soviet philosophy has always been larger and more inefficient. Not that they were striving for inefficiency, they didn't have the technology or capability to do otherwise.
Case in point, we launched the Nautilus first. From a hull design, the world's first nuclear sub looked a lot like conventional diesel subs. Soon after that, we recognized that nuclear subs needed a different hull design, one that was designed to be underwater...streamlined, and built for speed and silence.
On the other hand, the Soviets had three or four submarine classes before they caught up to us in hull design. Why? Because they were so hell-bent on trying to build a nuclear submarine, they weren't thinking about things like speed...or silence...or safety.
The Alpha class--which came about in the 1970's--was among the Soviets fastest sub, probably faster than any of ours. Sure, it was fast, but it was incredibly noisy at speed.
In the 1980's, the Soviets figured out that "silence was golden," once they learned they could spy for, and steal technology; it was a lot easier than developing it on your own.