Firstly i have to say that we have the Chico UFO walker but the seat pattern is different to the one in the picture, ours has different coloured stripes on it and the colour of the plastic is green instead of orange, apart from this it is the same walker.
We received this from a friend second hand, if it had not been for this personally i wouldn't have bought one myself because i was not very keen on them and it's another chunky thing to store. However having said that it has turned out to be a great thing my daughter can play in and she loves it which is the main thing.
This walker has 4 wheels, one on each corner, it can collapse down so is a lot thinner and easier to store, ours fits down the side of the sofa. It has 3 different heights it can be set at and the lever locked into place on each one depending on the height of your baby. The back of the seat is very straight to offer good back support if the child sits up straight, which our daughter doesn't yet do as she likes to lean forwards and try and look over the side!
On the front tray bit is the main activity console, there is an imitation steering wheel which squeaks when pressed and can be turned side to side. There is a key shaped like a bear which can be twisted which makes a noise. Four coloured buttons, red, yellow, green and blue which each play a different 'space' tune and a lever which when pulled towards baby plays a tune. Whenever a tune is played there are small lights which flash different colours on the main console, one is directly in front of baby in the blue dashboard. There are 2 reflector lights on the front of the console which do not light up but which my daughter leans over to see as i think she thinks they should and gets quite fascinated with them!

This is suitable from 6 months and advise is not to leave babies in them for longer than about 20 minutes at a time as when they are in them they lean forwards and do not have a good posture. Our daughter has been using this since about 6.5 months on and off, at first she could not move it about as only tiptoes could touch the floor and she wasn't strong enough to move it on carpet. Now at 9 months and looking like she will be more of a walker than a crawler she loves it and can move about all over the lounge carpet with ease. She will sometimes go in it a couple of times a day for no more than 20minutes and enjoys this time.

There is nothing wrong with this walker and i think it is a good addition as something different to play with and gives more independence on the babies feet and movement, i do not think i would want to spend £60 on a new one some of them are but second hand has been fine as i do not think they will be using it for that long really.