Yes,Lodewijk did try his best for the dutch,and used as he was to swift decisision making and the immediate execution of those decisions,that earned him a lot of respect and admiration,well,not in all ranks,but most.
From time to time,between 1806 and 1808 Hortense lived with the King and her (then) two boys,Napoléon-Charles and Napoléon-Louis,at Het Loo Palace,Huis ten Bosch Palace,the Royal Pavillon in Haarlem or at the Royal Palace in Utrecht.Their relationship never was a love-match and both felt free to have affairs while here.In 1807 their eldest son died at The Hague,Hortense returned to France,Lodewijk occasionally visited her and his son in Paris.
Hortense got pregnant again,but refused to return to Holland.In the night of april 20th 1808,at 01.00AM she delivered a son,Louis-Napoléon,the future Emperor Napoléon III.
The date,april 20th coincided with Louis-Napoléon taking up residence at was formerly the Town-Hall,from then onwards till today,the Royal Palace,Amsterdam.
Besides that he had the whole building totally refurbished and added the balcony,he made sure that his appartment,on the south-west side on the corner of the Kalverstraat(for the dutch and future tourists/visitors)and the appartment of Hortense were as far away as possible,all 80 meters of it,facing the Nieuwe Kerk in the north-east.But it wasn't until two years later,in 1810 that Hortense returned and took up residence at the Palace.For 27 days only,then she fled back to Paris,for good.Lodewijk would soon follow that very same year.
While the couple was re-united at the Palace,Lodewijk did try to make the best of his family life,playing with his children,taking them out on his arms on the balcony whenever he felt like it,causing bypassers to stand and cheer by their unexpected appearance and as a result there would be crowds within a short time.All to no avail,Hortense only complained about this that and what else.
Main reason his brother called him back to Paris was Lodewijks attitude towards the dutch and their interests,specially the dutch economy,a once thriving sea going nation,now crippled by Napoléons decision to boycot all trade with the british.Lodewijk saw the problem and "looked the other way".At first Lodewijk was summoned to Paris,then forced by his brother,as a repercussion,to sign an Act that would leave the southern parts,Zeeland,Brabant,Limburg to the Empire,cutting his Kingdom in halve.He was kept under guard while in Paris and had to stay to attend the official reception of Marie-Louise,Napoléons new bride.
He did leave us a lot,to name two,ao,the Royal Library,The Hague was his initiative,and what is now known as the collection of the Rijksmuseum the other.Only,Lodewijk had that museum on the upper floor of the Palace,now housing the private and guest appartments.Totally refurbished at the moment,lasting another two years.Incidently,that coincides with the time it took to change the Town Hall into Lodewijks Palace,200 years ago.
But to come back to your initial question Mili,their marriage was disaster,but both "found"many people passing through their bedchambers.