Lake's are often heavier.

I've put extensive miles on Sidi, Specialized, Shimano, Lake and Riivo. I've also tried Giro, Northwave, Bont, and Fizik.

I generally found that Sidi and Specialized fit very different. If you liked the Specialized, you probably won't like the Sidi. Shimanos are kind of in between. My Riivos are custom - so they don't count. The others were all way too narrow for me.

As for Lake, they have three lasts. Some have wider toe boxes than others. Lake does a great job posting the length and width of each last on its website. I use the widest last possible, and it's ok. The heel fits pretty well, despite being very wide at the toe box. The high end Lakes are really, really nice. I wish they fit me.

In regards to quality, they are all solid shoes.