The short answer
A straightforward convection toaster oven that sits below the flagship TOB-260N1 in size and price, with dials rather than a capacitive glass panel. It is well built, it is from a brand with a real service network, and its failure modes are mechanical and obvious. What it is not is documented: Cuisinart publishes no wattage for this model, which for a site that ranks on published specifications is the fact that decides where it lands.
Dials are the actual feature
Most of what goes wrong with a countertop oven is electronic. A capacitive touch panel that stops registering, a control board that fails, a display that dies while the heating elements are perfectly fine — these are the failure modes that retire ovens, and they are not repairable at this price. Physical dials have none of them. You are trading precision of setting for a longer plausible service life, and given how coarsely most people actually use a toaster oven, that is usually the right side of the trade.
It is the same argument that makes the Cuisinart Custom Classic such a durable recommendation, with a fan added. If you want the reasoning in full, we price the fan question out directly.
The documentation gap, stated plainly
Cuisinart publishes a full specification for the TOB-260N1 — 1,800 watts and a 0.95-cubic-foot interior, on the same page, which no other manufacturer on this site manages. For the TOB-135N it publishes neither a wattage nor an interior volume that we could find. That means we cannot compute what this oven costs to run, cannot tell you how it compares on power to anything else here, and will not estimate either.
This is not a small objection on a site whose entire authority claim is reproducibility from published sources. One of our five scoring metrics is documentation, and the TOB-135N scores poorly on it for a reason a reader can verify in thirty seconds by looking for the spec sheet themselves. The rubric is published here, and the wattage table this oven is missing from is here.
Where it sits in the range
Awkwardly, and that is the honest verdict. Below it, the entry band offers a fan for considerably less money — our convection toaster oven ranking starts around sixty dollars. Above it, the TOB-260N1 offers a genuinely larger cavity, a dual-cook mode that runs two temperatures in sequence, and the published numbers that make it checkable. Our TOB-260N1 review is here. The TOB-135N's case is the middle ground: more oven and more build than the budget tier, less money than the flagship, and dials throughout.
What it costs to run
We do not know, and neither does anyone else who has not measured it, because Cuisinart has not said. What we can tell you is the shape of the answer: convection toaster ovens in this size band typically sit below the 1,800-watt ceiling of a standard 15-amp circuit, which would make it cheaper per hour and slower per cook than the flagship. The arithmetic for any wattage is here — put the figure in yourself if you find one on the box, because that is more than we can responsibly do from the listing.
Who should skip it
Anyone cross-shopping it against the TOB-260N1 on specifications. The 260 publishes its numbers and this does not, and that gap is worth more than the price difference between them — you are choosing between an oven you can check and an oven you cannot, from the same manufacturer. Skip it too if you only want a fan at the lowest price, because the entry band delivers that for a fraction of this. Buy it if you specifically want Cuisinart's build with mechanical controls at a mid price, and are content to take the power figure on trust.
How we picked
Ovens we claim to have cooked in: 0
Everyone in this category tells you they roasted forty chickens. We have roasted none, and we say so. Here is what we do instead: read the manufacturer's manual and spec sheet, record the published wattage, interior volume, temperature range and warranty term, work out what the oven costs to run for an hour and for a year, show the arithmetic so you can redo it with your own electricity rate, and cite all of it. Where a brand publishes no wattage, we print no running cost rather than borrowing a number from a similar model. Prices come live from Amazon's API and disappear rather than go stale.
The scores above are judgments from that documented research — not test results. One of the five metrics is Documentation: whether the manufacturer will tell you what its oven draws at all. The full rubric, including what disqualifies an oven, is published in full.
