Most here aren't fans of sets. You tend to end up with pots you don't use/like.
All Clad is highly regarded, though there are reports of poor customer support on the warranty side. You can often find All Clad in discount stores like Marshalls, TJ Maxx and so on and pick them up cheaply. I've not found them in my local discounters.
Glass lids are tempered and fairly tough. If you use them in the oven, they can lose their temper over time. But generally, they're tough.
There have been a number of threads on this topic in the past. I'll try and pull up some links you might find informative.
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