First, let me say that your program seems reasonable enough. It's pretty common to do cardio on off days, with many people doing a similar program as you. There are some things you might want to consider, though:
Weight training at a high intensity can exhaust your body to a degree where cardio becomes harmful. This is especially true if you have any weak spots or previous injuries. I myself, for example, can not do heavy squats on monday and do cardio on a bike on tuesday, as my knee is quite weak and won't support that workload.
Training every day can be very rewarding, but it can also put you under a lot of stress. This is highly individual and depends on many factors, like how it's going at work, family troubles or just pushin youself too hard.
Make sure your recovery is good enough for you to be able to take 5 days of sports a week. If you're on a diet, you might recover slower and need to adjust. Also sleep enough. Aim for 8 hours or more a day.
In the end, your training program will have to fit you, no expert's opinion will make it work, if for some reason it doesn't fit you. Try it, and if it doesn't work, adust it to your needs.