I have a glider chair and I loved it, I wouldn't pay full price though. Mine was from eBay so its best to look on there, face book, gum tree etc. Just bear in mind how often you'll be using it- mine was up in our room for night feeds but I got reliant on it and couldn't get comfy to feed on the sofa so I'd be stuck upstairs on my own cluster feeding.
I had a kiddicare glider chair - didn't admittedly get much use out of it in the beginning but was excellent for nighttime feeds and it's still in ds's room now at 20 months. Great for daytime stories or bedtime stories and milk. Really good investment.
I got a glider chair & foot stool off eBay & it was definitely money well spent. I've used it for all the night feeds & still sit in it every night for DS's bedtime bottle & story & can see us doing so for some time.
Have a glider chair and footstool from kiddicare, was a display one so didn't pay full price still on DD1's room 5 yrs later and will be using it for DD2 once she arrives definitely made night feeds easier and I felt a lot safer than doing it sat in bed in case I fell asleep. Give eBay and other sites as mentioned above a try.
Controversial here: my gran bought me one and I think it's hopeless! Used it initially but then started feeding in bed for two reasons: baby feeding so much coming and going from nursery was just too much (staying in bed 100x easier!) and also baby quickly too long so couldn't get comfy without his wee legs hurting the arms. I guess I use it to sit on if we're playing in the nursery but can't read on it or anything. They're not for everyone so careful what you spend.
Sat very comfy in bed all cozy listening to LO and DH. Breathing in slumber. Much less lonely IMO