We opened our doors in April. We chose the HP L25500 over the Roland for a number of reasons.
1. Built in take up (adds significant cost to the Roland)
2. User maintainable / changeable print heads
3. Much simpler easier maintenance.
4. Print Quality
5. Support. (we just had a print head failure. The display said the head had failed and also told us that it was still in warranty. HP sent us not just the bad head, but a whole set, free for nothing)
6. No wait time for lamination (time saved is money saved)
7. Reporting capabilities. (the machine via its web interface will tell you how much media, ink and electricity was used on each job).
8. Green Marketability. (HP has tons of web presence regarding this, they have a good recycle program..i.e. they pay for return of heads and materials)
While we may argue all day about what is actually "greener", HP's marketing of their green capability wins hands down.
The only downside is that we did have to install 2 220vac outlets, and I chose to install surge protected outlets. This cost us $750.00.
We have found very little not to like so far.