Thus far (2 weeks in) no problems at all. The tonneau cover and running boards were not ready when the truck was delivered, but the vehicle arrived earlier than expected at the dealership.
After two weeks of driving, I'm very happy with the Tacoma. It is roomier than my last vehicle (98 Honda CR/V) and much more powerful. It handles very well in both wet and dry conditions, but I haven't yet had a chance to try the off-road capabilities.
The truck feels more stable in cornering than my CR/V, which was a pleasant surprise, given that it's both taller and has a higher ground-clearance than the CR/V. Gas consumption is, however, higher than my old vehicle (an expected trade-off for a heavier, more powerful truck).
The gearing is different than my previous vehicles, in that first gear is much lower than I've been used to: I'm having to up-shift much sooner when the truck gets into motion from a stop. I have found that I really need to be almost completely stopped before shifting into first gear: if I'm moving more than a couple of km/h, there's an audible and physical "clunk" as the gears engage. Having a sixth gear is very good for highway travel, but it's only a cruising gear... for passing, I _have_ to downshift to 5th, unlike in the CR/V.
The manual transmission models (in Canada anyway) only come with a 5-foot bed, which is a bit of a hassle for long loads. I carried a load of 4x8 plywood on the weekend and had to be very careful in securing the end of the sheets, which projected beyond the lowered tailgate.
The interior is very comfortable, with plenty of well-thought-out storage and cupholder locations.
I agree with the above comment about the low gearing of the transmission. However, one good aspect of the transmission is its usefulness when stuck in traffic. I drive 130 miles each way to work and back. Prior to having the Tacoma I drove a 2004 Honda Accord V6 coupe with a 6 speed manual. That car gave me very nice calves due to the constant engaging of the clutch in traffic. The Tacoma is geared so low that I rarely have to engage the clutch when moving at ultra low speeds. I've had my truck for about a month now and I don't know how I lived without it. While it's not as good using gas as I'm used to, it makes up for it in other areas. I would highly recommend this truck to anyone in the market.