Truly unlimited data for $50/month is a relative bargain. Verizon doesn't throttle. I've had an off-contract UDP for many years and pay the extra $30/month for tethering. I travel a lot for work, and hotel WiFi is universally terrible. I have 14 days left in my billing cycle and I've used 14 GB of data, so even the XXL data plan isn't really going to work for me.
My company provides me a line of service with AT&T with unlimited everything (data/talk/text). We can completely use our work phone for our personal use as well. The only caveat is it doesn't come with tethering. If we opt for tethering, our data plan gets capped at 5 GB/month.
If I didn't have a completely free unlimited line on AT&T, I would keep my Verizon plan and happily pay the additional $20/month. But I am debating on if it's worth it for me to keep my personal phone with Verizon now that the cost is going up.