Hi Rowena and Carl,
We have travelled to Crete with Excel twice and will be flying with them again in September. We found them to be EXCELlent. All of our flights have taken off bang on time and usually arrived early (coming home last year we landed about 45 mins early). The planes have been spotlessly clean, they seem to have quite a bit more leg room, cabin crews have been very friendly and helpful, check in very quick and efficient, in fact we have nothing but praise for Excel. We booked in January this year, and paid £375 for two adults, including all taxes, meals etc. I haven't seen the fares quite that low since then. All in all, I would recommend them - however - I know that others have had bad experiences with Excel, so this is just my opinion.
Jan