In layman's terms, your rate will depend on two factors:
It is always a set percentage above the Euribor average rate that your bank uses.
The percentage depends on what has been stated in your mortgage agreement and also this will state what monthly average Euribor rate they will use, some banks use last months, others will go back two months.
My bank charge 1% above the average Euribor rate of two months ago, which works out as: 1.644 + 1% = 2.644
So in answer to your question, No! I don't think it is a good rate, as it sounds like they are charging you over 1.80% above either of the last two monthly Euribor averages.
As the average for last month was 1.610 and it is set to be lower again this month.
Phone them up and ask them what percentage they charge above the average Euribor rate and then ask them what monthly average rate they are using... and then compare it with this chart of monthly average euribor rates since Nov. 08.