Depends what’s most important! If it’s picture quality, then OLED is the way forwards, but I haven’t seen any smaller than 48″. Saw an LG one for under £700 a few weeks back, I’d expected more bargains of that sort around BF time.
I’m sure the Samsung will be fine but don’t let the “Q” fool you, it’s not anything special! Get on HUKD and check out the deals, there are loads about at the moment. If you’re not too fussed then just get whatever is the right size at the right price, from a reputable manufacturer & retailer! The HUKD threads are quite handy as there’s often a lot of nerdy chat in the comments regarding the pros and cons of whichever telly is on offer.
Had to adjust the picture to a different preset though as the default mode was a bit “cartoony”.
any telly will need setting up properly due to different light conditions, etc, loads of vids on YouTube. Even better if you can find a guide specifically for your telly as a lot of them come with processing options on by default which you don’t necessarily want, which was probably the case with yours.