You pay for quality

If you can afford it, I recommend buying the stainless steel model (TOB-175). It seems that the one of the few complaints people have had is the plastic construction on the TOB-165, and we all know that plastic has potential problems like cracking and discoloration that stainless doesn't have. I've seen both models, and the stainless is much more attractive, is sturdy-feeling, and has a professional look in the kitchen. After a frustrating round of searching for the stainless model in the stores, I figured out that the major home stores (like Lowe's) carry only the plastic model (TOB-165) in the store. I bought online at Amazon.com with no problems.
This oven has excelled at toasting, baking brownies and casseroles, and reheating leftover pizza or fried food (crispy once more!). The convection feature really cuts down on time and produces even cooking, and I use it for everything except toast. I reduce the cooking temperature by up to 20% when using convection to avoid over-browning or boiling over (for example, I baked a cheesy casserole at 325 degrees instead of the 400 the recipe called for). The touchpad is easy to use and to clean, and hallelujah, there are no knobs to break! The advantage of the digital touchpad is that you get consistent results every time- no problems because you turned the dial a little more this time. Just choose bake, toast, or convection bake, set your temp or toast setting, and press start. I really like that it remembers my last toast setting, so every morning I don't have to reset it from the default setting- just press toast and start.
A friend of mine has a $30 toaster oven from WalMart and he has some serious toaster-oven envy, my friends. That thing feels like it's about to come apart in your hands when you turn the knobs. One heating element in a cheapie oven means you heat from one side, so part of the food can be cold while the rest is scorched. I do wish I could use the timer when I'm not using the oven, but hey, that's what my microwave is for now. Also, some other ovens have a catch that pulls the tray out slightly when you open the door for easier loading/unloading, but this one does not.