Unger the professionals choice?
It's Toys r us squeegees seriously, ettore is superbly balanced, and is 10x the squeegee Unger is. Ungers bucket is strong (the one with the casters), their poles are okay, I'm using them atm, simply because I never knew about the harris pole 2 years ago. Flipping costed me £80 that 20ft Unger pole. Their buckets on a belt aren't great either.
Ettore squeegee off is one of the best liquids I have used, and will always use it for insides.
Unger rubber is pants, Ettore or SYR.