I'd like to offer another vote to avoid the Mitchell...(I know that build and sound can very, especially from factory-made ukes)
I was in Guitar Center last month, and of a dozen ukes they had on the wall that I played, I found the Mitchell to be heavy, overbuilt, and lacking definition in note clarity (i.e., 'muddy') and lacking sustain. I can get a more pleasing sound from a rubber band stretched over a 2x4...
Mitchell seems to focus more on eye-candy than the sound, with the faux abalone binding and rosette and faux tortise binding...just seems like lipstick on a pig to me...
Having said that, in this random sampling that I played of others, at this sitting with the Mitchell - I found that the Luna tattoo tenor actually had the most resonant and pleasing sound even compared to the Gretsch, Cordoba, Kala and Diamond Head ukes that I played that day. I was VERY surprised because Luna is not highly regarded here on UU.
However, the intonation on the Luna was WAY off, sharp about 10 cents from the 1st fret all the way up the neck, so this would have required a setup done to modify the saddle and nut. When I inquired about setup work at GC, I was met with blank stares and when I pressed further I was met with 'we dont do that here' - so but of course I can do it myself, but my time is worth more to me than the handful of hours of incremental tweaking necessary to dial it in so the instrument would PLAY in tune.
So my advice, aside from AVOIDING Mitchell, is to get a uke from a vendor that will do a SETUP and make sure that:
a) the fret ends are smooth so that you do not cut your hand when playing
b) a setup is done to perfect the intonation as much as possible
Without a setup, especially as a beginner, you are in for a bad time since the instrument can physically cut into your fretting hand, as well as ruin your ear-training by never being in tune, and will never sound right, feel right or play right, ALL of which can be easily fixed/avoided by getting an instrument that has had a setup done.
You can also learn about doing setups yourself, it's not hard to do and requires only a few tools, but this will slow down your ramp up time to actually playing the instrument, but will teach you how string geometry works and how the instrument works from an audio-physics perspective.
Whatever you do, I am sure that you can count on UU for support.
Please report back when you find something you like, as there are many folks here who can offer assistance.