With regards to the push lawnmowers, Makro & Game had the Trimtech one for R799 for a long time...Makro recently put up the price to R899, and now also have the Ryobi one for the same price, and Game put the price up to R995.
I recently moved into a new place, which also has a very small garden, also around 16-20m2...decided to get the Trimtech one. Went on Game's website and couldn't believe my eyes - the Trimtech one was being advertised for R299! Phoned my nearest branch, sorry sir it is a mistake, we sell it for R995...friends of mine in Nelspruit went to the Game store there and showed them the online ad, and believe it or not they got it for R299! Next morning, the price on the website was back to R995.
Still waiting for my friends to come visit from Nelspruit and bring me my lawnmower, so cannot comment on the ease of use yet...my grass is also still growing so no need to cut it yet.
Decided to get a weedeater as well, cheapest one is the Ryobi 350W model, for R349, there is also a Wolf 350W for R399, when Makro had the Wolf one on special for R279 I grabbed one.
So quite happy with my purchases...one doesn't need anything more for such a small garden like mine.
One of my friends is a very small and petite woman, and she used a push lawnmower to cut her townhouse's lawn, which is almost three times as big as mine, and she claimed it was easy for her, so I believe they work quite well.