I like two-stroke lawn mowers. You can't buy them here any more because of pollution restrictions, unfortunately. They're nice because they're considerably lighter than four-stroke types, they aren't as noisy, they develop torque like an electric motor, and they're usually cheaper. I've had two of them over the years and have always been happy with their performance. I buy the absolute cheapest push rotary mower and just throw them away when they're worn out, or rust through, or the wheels fall off after five or six seasons. Both of the two-strokes I had, the decks eventually rotted through, the engines were fine. Mixing gas is no big deal, you buy the small 50:1 bottles of oil that make a gallon of mix. Just dump the oil in a gallon can and fill with gas -- nothing to measure, no mess. It's as easy as filling the gas tank, and you do it once or twice a season. Mixing the gas is less hassle, IMO, than changing oil in the engine crankcase, which is usually a messy PITA.
Yep, a lightweight two-stroke is just the ticket.