I was like a zombie for the 3+ months I was on it. Mostly asleep the 2 days after the dose, I gradually got used to that but still slept the day after and felt very very tired the following. The rest of the week I couldn't think, concentrate, memory was 'donald duck'ed, just very horrible. And finally I got maybe a touch of methotrexate pneumonitis, and palpitations so told the docs that I'd had enough.
Not exactly selling it to you am I! - of course remember that not everyone has such a horrible time with it.