Frankly, for me, Trezor or any kinda hardware wallet is a redundancy. We have done so much to move from barter system to cold hard cash to online banking to bitcoin. Again having an hardware to store value is just a pain in the ass IMO. Paper wallet should suffice for cold storage. For day to day use have an online/mobile wallet.
That's what I thought first of all and then read over the comments and people were claiming its more secure and easier to use of course its not more secure than a paper wallet because thats impossible but maybe more secure than online wallets although I store a small amount in a web wallet I have not had any problems yet.