Sliced beef in rendang, now that’s a first for me. 
Beef rendang should always consist of chunks.
I must say you are very adventurous indeed to try out this new place although, by your description of the dishes, they sounded quite underwhelming. Good Malay food is not really easy to find, even in London, where there is a large presence of Malaysian students and diplomats.
The next time I’m in London, I’ll give you a shout and see if you can come down. I’ll take you to the Malaysia Hall Canteen ([London] Best Malay food at Malaysia Hall Canteen, Bayswater) for a taste of the real thing. 
