Nah, they were a doddle - 10mm drill bit, mains powered drill and a cheap hobby blowtorch.
The subframe bushes were similarly easy to do, getting the subframe off to do them needs a mate and a couple of jacks though.
I've done two lots now, the first were absolutely fine - took a bit of drilling and some screwdrivering/heating as described - replaced with poly bushes...easy.
Second set took a bit longer to get out, not too bad but a bit time consuming, they were being replaced with standard bushes though which were an absolute mare to get in with a homemade tool, for all poly bushes are a bit harder the lack of install effort is definately worth it!