No issues using TIPxxxs, just make sure you connect them correctly and use suitable value resistors (remember TIPs are current based. Mosfets are voltage based).
Reason for switching to mosfets; influenced by all the internet experts I came across. Did make the circuit a little simpler though and mosfets draw less current (although this is still relatively small).
In my own tests, for use with switching solenoids, I found no discernible difference between mosfets and TIPs. You need to look at the nanoseconds scale to see a difference.