I bought this inverter from ebay from a Chinese supplier for just 120€ including shipping to Malta. Quite cheap considering the output of this inverter.
The inverter is rated at 1000W at 230v output.
From the outside, the inverter is well built. The input terminals are fused, sturdy and thick enough to handle 10mm cables. The fan comes on occasionally just when the inverter body becomes warm, thus giving plenty of time for the inverter to start the cooling process.
The big question is how will it perform?
Well, I have been using it for 1 month and the maximum current which is has drawn from the solar panels/batteries is 20amp, therefore outputting about 250W into the grid. The inverter just gets slightly warm.
Once I'll have more input power, I'll be able to fully judge the inverter performance. Right now the inverter is operating in a 'relaxed' mode.