After sorgältiger testing we chose for the Tristar RK-6112. Conclusion: It was worth it. The preparation is simple (fill a measuring cup more water than rice into the pot, plug it in, about 20 minutes waiting for the "yellow" light), the result beyond doubt: taste and consistency are perfect. The automatic warming function is handy flavor losses are not discernible.
Workload and a remarkable cooking result for little money: Five stars.