I put the v-brake version of the Sun UFO rims on the front and the rear of my bike about 5 years ago (it might have been a different version than the current one, but for sure it looks the same, even the sticker). The rear one got trashed pretty fast - it wasn't built properly for sure. But the front one has been amazing during all these years: I used it for the first 2 years, and then put it on my wife's bike (since then it didn't get used too much). What's amazing is that in all these 5 years all I did was minor adjustments, nothing major - there's even a groove along the brake surfaces made by the brake pads from that much braking.
For sure the rim is strong enough if the wheel is built properly. Also, it has eyelets which helps with the tension distribution.
On the other hand, the Stan's rims don't have eyelets, but the 100nm tension limit shouldn't make any damages to the rim around the nipples (mine didn't and I've built them both to 100 - 105). I went with the 355 rims as they are stiffer laterally than the Olympics (which, on the other hand, are stiffer radially). Mine came in at 360 and 351 grams. The one on the rear has almost a year now and I'm happy with it.
Vlad: you can go with the Alpine, which is the [supposedly] improved version of the Olympic (lighter alloy, lower bead socket which saves weight too).