First let me say it's a good show. My kid loves it and it's interesting enough from an adult perspective that my wife and I can both watch it as well. It's well acted with reasonable amounts of humour and drama side by side.
One thing I found very interesting was that just like real life Victorian London this show had a number of black and brown people in it. This wouldn't be remarkable but for the people who seem enraged by the inclusion of nonwhite actors in the cast because their inclusion constitutes "wokeism". Period pieces are never really realistic because if they were no one would watch them. Our mores are too different and the disease, filth, cruelty, and degradation they took for granted would be unbearably repulsive for us. The shows are aimed at showing a relatable view of the past rather than showing the past as it actually was. So it seems very strange for anyone to ignore the genuinely unrealistic aspects of this and every show set in the Victorian era to fixate on the fact that London was accurately portrayed as having ethnic minority residents.
No show is perfect of course and I found that some of the plots demanded that minor characters display a level of stupidity that was truly astounding. Overall though I'd say it was entertaining and definitely worth giving a chance.