Now then, I will actually disagree with some of the above.
The 1.0 is a pretty reasonable engine for around town and I find acceleration ok (0-60 is circa 14-15 seconds so there are far worse cars out there!) although overtaking would be more challenging (but achieveable).
The things to watch for (true of the 1.0 and 1.2 which are the same engine with the 1.0 only having 3 cylinders)
Water ingress on the drivers side - caused by ageing sealing strip around a bulk head plate, takes about an hour or so to fix with Sikoflex
Water ingress on the passenger side - caused by a seal on the fuse box in the engine compartment rotting out with age, about £25 for a new cover and around 20-30 minutes to change.
Rattling timing chain - listen to it on start up from cold to check, sign of poor maintenance
Water pumps leaking - tends to be on higher mileage cars, about an hour to change
CV joint boot clips - have a habit of rotting and becoming an MOT failure, not hard to fit but buy good ones so they last (and do them before water gets in knackering the CV joint).
Other than that its the usual bits that inflict all cars these days such as broken road springs etc.
The plus is the low cost insurance and great fuel economy, one of the ones I maintain gets circa 50 mpg around town driven sensibly and 60's on a run at 70. Plus with 12 months MOT, you will get 600-700 pounds for them every day of the week.