Have the RX200s, no issues with VW mode, but can't get it to work in SS TC mode even after I play with the TCR. The YIHI works fine in all mode, but the 350j seems to sap battery life quite a bit. 450j is better.
Overall I would recommend the DNA 200 or the 75. I dun go beyond 50w, but I got the 200 mainly bcos I use it at home for the long battery life. The DNA75 is a bit smaller if you need to bring out. DNA40 is also plenty out there.
Also I find the Evolve software is easy and straightforward to use. For some reasons I can't download the YIHI software..