Just want to say a big 'Thank you' to this post. I managed to change the fluid on my 2004 1.4 SE by myself yesterday. This totally cured the funny vibration when the vehicle start moving. I know this will come back some point, but I am not scared of this anymore as I can fix it by myself.
Bought two genuine HONDA 4L CVT fluids on ebay (cost me about £80). I bought a washer (about£1 from Honda), but didn't use it as the old one looked ok.
For the safety, I shouldn't have done this but just used pump jack (ie no axle stands) as I didn't really have to go under the car (just my arms once I recognised the drain bolt). I found a tip to drain out the fluid more - jack up the right hand side of the car when it stop dripping on flat, which help the drain-out extra 100-200ml.
Follow the instruction as explained here (shifting between gears, holding up to 3000rpm etc), drained the fluid out again after waiting for 1 hour or so (someone said 'wait at least 20mins', but please wait more as long as you can. If this is too short, it won't cure the problem). It takes time, so be patient.
I changed the engine oil/filter/air filter/cabin filter/spark plug while waiting 2nd drain out. Now the car runs wonderfully. I didn't know the car is so powerful with full throttle, couldn't do before because of the vibration. I took me 4-5 hours in total, but it wan't too difficult and it is definitely DIYable if you have the right tools.
The costs in total were about £120 (inc oil and filter etc). For almost like a full service, it is not bad if you have spare time to do it yourself.
I got so much used to the vibration since I bought the car a few month ago, so I feel rather strange without any noises or vibration

I would like to put a new aftermarket stereo next. Thanks.