It's absolutely great.  You can connect it with Electrum and loads of other wallets so you're not missing anything that other people do, and their own interface is pretty smooth/convenient as well.

If you're not very tech-savvy and you need to feel secure from viruses, physical theft and many other issues, it should definitely be your first choice.

Just keep your seed safely locked up/hidden/buried or use a passphrase.  If you want, TREZOR even suggest having a second decoy passphrase which leads to fewer coins and keeps you safe from a five dollar wrench attack.