I tried this cheap camera stabiliser from Ebay. Although it can take a DSLR, trying to balance the weight of a heavy camera on one of these is so fiddly and takes so long, it's not worth it. I found it to be ok for use with a small mirrorless (depending where the tripod thread is for balance) but for me, it is more suitable for use with a GoPro or a mobile, but I found that the weights that came with it were too heavy, so I bought a pack of penny washers that enabled me to fine tune the balance, making it quite a useful accessory.
One thing I did find when taking it out is that it is a very awkward shape to pack away, I eventually managed to hang it on my bag but that was not ideal.
Obviously, this is not a gimbal, but then this and similar stabilisers sell for around £15/£25 pounds. If you have the time and patience to get it correctly balanced, it will make a massive difference to your motion video footage, but there is a learning curve that involves working out how to walk like a Ninja!
Worth the money, but not worth much more.